Method and device in node for wireless communication

ABSTRACT

The present disclosure method and device in node used for wireless communication. A first node receives first information, the first information being used for indicating a first time-unit format; determines second information; and determines a first resource pool; herein, a first time window comprises Q first-type time-domain-resource blocks, the Q being a positive integer greater than 1; a first symbol is one of the positive integer number of multicarrier symbol(s) comprised in any of the Q first-type time-domain-resource blocks; the first time-unit format is used for indicating whether the first symbol is a first-type symbol; the second information is used for indicating a positive integer number of first-type time-domain-resource block(s) out of a first time-domain-resource-block subset. A flexible slot format has been taken into account in the process of V2X resource pool configuration in the present disclosure, thus ensuring that the resource pool can effectively meet traffic requirements.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese PatentApplication No. 201910610969.3, filed Jul. 8, 2019, the full disclosureof which is incorporated herein by reference.

BACKGROUND Technical Field

The present disclosure relates to transmission methods and devices inwireless communication systems, and in particular to a transmissionscheme and a device relevant to sidelink in wireless communications.

Related Art

Application scenarios of future wireless communication systems arebecoming increasingly diversified, and different application scenarioshave different performance demands on systems. In order to meetdifferent performance requirements of various application scenarios, the3rd Generation Partner Project (3GPP) Radio Access Network (RAN) #72plenary session decided to conduct the study of New Radio (NR), or whatis called fifth Generation (5G). The work Item (WI) of NR was approvedat the 3GPP RAN #75 plenary session to standardize the NR.

In response to rapidly growing Vehicle-to-Everything (V2X) traffic, 3GPPhas started standards setting and research work under the framework ofNR. Currently, 3GPP has completed planning work targeting 5G V2Xrequirements and has included these requirements into standard TS22.886,where 3GPP identifies and defines 4 major Use Case Groups, coveringcases of Vehicles Platooning, supporting Extended Sensors, AdvancedDriving and Remote Driving. At 3GPPRAN #80 Plenary Session, thetechnical Study Item (SI) of NR V2X was initialized, and later at thefirst AdHoc conference of RAN1 2019 it was generally agreed that thepathloss between a transmitter and a receiver in a V2X pair shall betaken as reference for the V2X transmitting power.

SUMMARY

There are several transmission formats of subframes in conventionalLTE/LTE-Advanced system, wherein uplink and downlink ratios of eachsubframe are relatively fixed. But in NR system, uplink and downlinkratios of each slot are relatively flexible, and even a flexible symbolis introduced, which can be used as an uplink or a downlink. However,for near field communications like V2X, uplink resources are generallyadopted; too flexible uplink and downlink ratios result in that someresources with uplink symbols are still not suitable for V2Xcommunications.

To solve the above problem, the present disclosure provides a scheme fora sidelink resource pool configuration, which effectively solves theproblem of effective utilization of flexible slot formats in V2X system.It should be noted that the embodiments of a User Equipment (UE) in thepresent disclosure and the characteristics of the embodiments may beapplied to a base station if no conflict is incurred, and vice versa.The embodiments of the present disclosure and the characteristics of theembodiments may be mutually combined if no conflict is incurred.Further, although the original intention of the present disclosure isfor single-carrier communications, the present disclosure can also beused for multicarrier communications. Further, although the originalintention of the present disclosure is for single-antennacommunications, the present disclosure can also be used formulti-antenna communications.

In one embodiment, terminologies in the present disclosure isinterpreted with reference to a definition of 3GPP specificationprotocol TS36 series.

In one embodiment, terminologies in the present disclosure isinterpreted with reference to a definition of 3GPP specificationprotocol TS38 series.

In one embodiment, terminologies in the present disclosure isinterpreted with reference to a definition of 3GPP specificationprotocol TS37 series.

In one embodiment, terminologies in the present disclosure isinterpreted with reference to a definition of specialization protocol ofInstitute of Electrical and Electronics Engineers.

The present disclosure provides a method in a first node for wirelesscommunications, comprising:

receiving first information, the first information being used toindicate a first time-unit format;

determining second information; and

determining a first resource pool;

wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol; thesecond information is used for indicating a positive integer number offirst-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset, the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, a problem needed to be solved in the presentdisclosure is the problem of V2X resource pool configuration incurred bya flexible slot format.

In one embodiment, a method in the present disclosure, wherein the firsttime-unit format and the second information are jointly used fordetermining the first resource pool.

In one embodiment, the above method is characterized in that the firsttime-unit format is introduced to determine the first resource pool.

In one embodiment, the above method is characterized in that the firsttime-unit format is connected with the second information.

In one embodiment, the above method is advantageous in that slots withfewer uplink symbols are excluded from the V2X resource pool, thusensuring that the V2X resource pool can meet V2X traffic requirements.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining whether a first candidate time-domain-resource block belongsto the first time-domain-resource-block subset;

wherein the first candidate time-domain-resource block is one of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for determining whether the first candidate time-domain-resourceblock belongs to the first time-domain-resource-block subset.

According to one aspect of the present disclosure, the above method ischaracterized in that a time-unit-format list comprises a positiveinteger number of first-type time-unit format(s), the first time-unitformat is a first-type time-unit format among the time-unit-format list,and a time-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when thefirst time-unit format belongs to the time-unit-format subset, the firstcandidate time-domain-resource block does not belong to the firsttime-domain-resource-block sub set.

According to one aspect of the present disclosure, the above method ischaracterized in that the first time-unit format is used for indicatingX1 multicarrier symbol(s) comprised in the first candidatetime-domain-resource block, the X1 multicarrier symbol(s) all being thefirst-type symbol(s), the X1 being a non-negative integer; when the X1is less than a first threshold, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block sub set.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining whether the first candidate time-domain-resource blockbelongs to the first resource pool;

wherein the first candidate time-domain-resource block belongs to thefirst time-domain-resource-block subset; the second informationcomprises a first bit, which corresponds to the first candidatetime-domain-resource block and is used for determining whether the firstcandidate time-domain-resource block belongs to the first resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining whether a second candidate time-domain-resource blockbelongs to the first resource pool;

wherein the second candidate time-domain-resource block is a first-typetime-domain-resource block among the first time-domain-resource-blocksubset; the second information comprises a second bit, which correspondsto the second candidate time-domain-resource block; the first time-unitformat is used for indicating X2 multicarrier symbol(s) comprised in thesecond candidate time-domain-resource block, the X2 multicarriersymbol(s) all being the first-type symbol(s), X2 being a non-negativeinteger; when a value of the second bit is a first value and the X2 isnot less than the first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining whether a second candidate time-domain-resource blockbelongs to the first resource pool;

wherein the second candidate time-domain-resource block is a first-typetime-domain-resource block among the first time-domain-resource-blocksubset; the second information comprises a second bit, which correspondsto the second candidate time-domain-resource block; a time-unit-formatlist comprises a positive integer number of first-type time-unitformat(s), the first time-unit format is a first-type time-unit formatamong the time-unit-format list, and a time-unit-format subset comprisesa positive integer number of first-type time-unit format(s) in thetime-unit-format list; when a value of the second bit is a first valueand the first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

determining a first time-frequency-resource block in the first resourcepool;

transmitting a first signal in the first time-frequency-resource block;

wherein the first resource pool comprises the firsttime-frequency-resource block.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a UE.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a base station.

According to one aspect of the present disclosure, the above method ischaracterized in that the first node is a relay node.

The present disclosure provides a method in a second node for wirelesscommunications, comprising:

transmitting first information, the first information being used forindicating a first time-unit format;

wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol; thesecond information is determined by a receiver of the first information,and the second information is used for indicating a positive integernumber of first-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset; the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; a first resource pool comprises a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset in time domain, and the firsttime-unit format and the second information are jointly used fordetermining the first resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in that a first candidate time-domain-resource block isone of the Q first-type time-domain-resource blocks; the first time-unitformat is used for determining whether the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset.

According to one aspect of the present disclosure, the above method ischaracterized in that a time-unit-format list comprises a positiveinteger number of first-type time-unit format(s), the first time-unitformat is a first-type time-unit format among the time-unit-format list,and a time-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when thefirst time-unit format belongs to the time-unit-format subset, the firstcandidate time-domain-resource block does not belong to the firsttime-domain-resource-block sub set.

According to one aspect of the present disclosure, the above method ischaracterized in that the first time-unit format is used for indicatingX1 multicarrier symbol(s) comprised in the first candidatetime-domain-resource block, the X1 multicarrier symbol(s) all being thefirst-type symbol(s), the X1 being a non-negative integer; when the X1is less than a first threshold, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block sub set.

According to one aspect of the present disclosure, the above method ischaracterized in that the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset; the secondinformation comprises a first bit, which corresponds to the firstcandidate time-domain-resource block and is used for determining whetherthe first candidate time-domain-resource block belongs to the firstresource pool.

According to one aspect of the present disclosure, the above method ischaracterized in that a second candidate time-domain-resource block is afirst-type time-domain-resource block among the firsttime-domain-resource-block subset; the second information comprises asecond bit, which corresponds to the second candidatetime-domain-resource block; the first time-unit format is used forindicating X2 multicarrier symbol(s) comprised in the second candidatetime-domain-resource block, the X2 multicarrier symbol(s) all being thefirst-type symbol(s), X2 being a non-negative integer; when a value ofthe second bit is a first value and the X2 is not less than the firstthreshold, the second candidate time-domain-resource block belongs tothe first resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in that a second candidate time-domain-resource block is afirst-type time-domain-resource block in the firsttime-domain-resource-block subset; the second information comprises asecond bit, which corresponds to the second candidatetime-domain-resource block; a time-unit-format list comprises a positiveinteger number of first-type time-unit format(s), the first time-unitformat is a first-type time-unit format among the time-unit-format list,and a time-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when avalue of the second bit is a first value and the first time-unit formatdoes not belong to the time-unit-format subset, the second candidatetime-domain-resource block belongs to the first resource pool.

According to one aspect of the present disclosure, the above method ischaracterized in comprising:

receiving a first signal in the first time-frequency-resource block;

wherein the first resource pool comprises the firsttime-frequency-resource block.

According to one aspect of the present disclosure, the above method ischaracterized in that the second node is a UE.

According to one aspect of the present disclosure, the above method ischaracterized in that the second node is a base station.

According to one aspect of the present disclosure, the above method ischaracterized in that the second node is a relay node.

The present disclosure provides a first node for wirelesscommunications, comprising:

a first receiver, receiving first information, the first informationbeing used to indicate a first time-unit format;

a second receiver, determining second information; and

the second receiver, determining a first resource pool;

wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol; thesecond information is used for indicating a positive integer number offirst-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset, the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

The present disclosure provides a second node for wirelesscommunications, comprising:

a second transmitter, transmitting first information, the firstinformation being used to indicate a first time-unit format;

wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol; thesecond information is determined by a receiver of the first information,and the second information is used for indicating a positive integernumber of first-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset; the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; a first resource pool comprises a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset in time domain, and the firsttime-unit format and the second information are jointly used fordetermining the first resource pool.

In one embodiment, the present disclosure is advantageous in thefollowing aspects:

the first time-unit format and the second information are jointly usedfor determining the first resource pool;

the first time-unit format is introduced to determine the first resourcepool;

the first time-unit format is connected with the second information; and

slots with fewer uplink symbols are excluded from the V2X resource pool,thus ensuring that the V2X resource pool can meet V2X trafficrequirements.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present disclosure willbecome more apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings:

FIG. 1 illustrates a flowchart of the processing of a first nodeaccording to one embodiment of the present disclosure;

FIG. 2 illustrates a schematic diagram of a network architectureaccording to one embodiment of the present disclosure;

FIG. 3 illustrates a schematic diagram of a radio protocol architectureof a user plane and a control plane according to one embodiment of thepresent disclosure;

FIG. 4 illustrates a schematic diagram of a first communication deviceand a second communication device according to one embodiment of thepresent disclosure;

FIG. 5 illustrates a flowchart of a transmission of a radio signalaccording to one embodiment of the present disclosure;

FIG. 6 illustrates a flowchart of a transmission of a radio signalaccording to one embodiment of the present disclosure;

FIG. 7 illustrates a schematic diagram of relations among a first timewindow, Q first-type time-domain-resource blocks, a firsttime-domain-resource-block subset and a first resource pool according toone embodiment of the present disclosure;

FIG. 8 illustrates a schematic diagram of a relation between a firsttime unit and a first time-unit format according to one embodiment ofthe present disclosure;

FIG. 9 illustrates a schematic diagram of relations among a firsttime-unit format, a time-unit-format subset, and a time-unit-format listaccording to one embodiment of the present disclosure;

FIG. 10 illustrates a schematic diagram of a relation between a firstcandidate time-domain-resource block and X1 first-type symbol(s)according to one embodiment of the present disclosure;

FIG. 11 illustrates a flowchart of determining whether a first candidatetime-domain-resource block belongs to a first time-domain-resource-blocksubset according to one embodiment of the present disclosure;

FIG. 12 illustrates a flowchart of determining whether a first candidatetime-domain-resource block belongs to a first resource pool according toone embodiment of the present disclosure;

FIG. 13 illustrates a flowchart of determining whether a secondcandidate time-domain-resource block belongs to a first resource poolaccording to one embodiment of the present disclosure;

FIG. 14 illustrates a flowchart of determining whether a secondcandidate time-domain-resource block belongs to a first resource poolaccording to one embodiment of the present disclosure;

FIG. 15 illustrates a schematic diagram of a time-frequency resourceunit according to one embodiment of the present disclosure;

FIG. 16 illustrates a structure block diagram of a processing device ina first node according to one embodiment of the present disclosure;

FIG. 17 illustrates a structure block diagram of a processing device ina second node according to one embodiment of the present disclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the present disclosure is described below infurther details in conjunction with the drawings. It should be notedthat the embodiments of the present disclosure and the characteristicsof the embodiments may be arbitrarily combined if no conflict is caused.

Embodiment 1

Embodiment 1 illustrates a flowchart of the processing of a first nodeaccording to one embodiment of the present disclosure, as shown in FIG.1 . In FIG. 1 , each box represents a step. In Embodiment 1, a firstnode in the present disclosure first performs step S101, receiving firstinformation; then step S102, determining second information; Finallystep S103, determining a first resource pool; a first time windowcomprises Q first-type time-domain-resource blocks, Q being a positiveinteger greater than 1; any of the Q first-type time-domain-resourceblocks comprises a positive integer number of multicarrier symbol(s); afirst symbol is one of the positive integer number of multicarriersymbol(s) comprised in any of the Q first-type time-domain-resourceblocks; the first information is used for indicating a first time-unitformat, and the first time-unit format is used for indicating whetherthe first symbol is a first-type symbol; the second information is usedfor indicating a positive integer number of first-typetime-domain-resource block(s) out of a first time-domain-resource-blocksubset, the first time-domain-resource-block subset comprises a positiveinteger number of first-type time-domain-resource block(s) among the Qfirst-type time-domain-resource blocks; the first resource poolcomprises a positive integer number of first-type time-domain-resourceblock(s) among the first time-domain-resource-block subset in timedomain, and the first time-unit format and the second information arejointly used for determining the first resource pool.

In one embodiment, the first information comprises the first time-unitformat.

In one embodiment, the first information directly indicates the firsttime-unit format.

In one embodiment, the first information indirectly indicates the firsttime-unit format.

In one embodiment, the first information is Broadcast.

In one embodiment, the first information is Groupcast.

In one embodiment, the first information is Unicast.

In one embodiment, the first information is Cell-specific.

In one embodiment, the first information is UE-specific.

In one embodiment, the first information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the first information is transmitted through aSidelink Shared Channel (SL-SCH).

In one embodiment, the first information is transmitted through aPhysical Downlink Control Channel (PDCCH).

In one embodiment, the first information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the first information is transmitted through a PDCCHand a PDSCH.

In one embodiment, the first information is transmitted through aPhysical Sidelink Control Channel (PSCCH).

In one embodiment, the first information is transmitted through aPhysical Sidelink Shared Channel (PSSCH).

In one embodiment, the first information is transmitted through a PSCCHand a PSSCH.

In one embodiment, the first information comprises all or part of ahigher-layer signaling.

In one embodiment, the first information comprises all or part of aRadio Resource Control (RRC) layer signaling.

In one embodiment, the first information comprises one or more Fields ofan RRC Information Element (IE).

In one embodiment, a definition of the RRC IE refers to 3GPP TS38.331.

In one embodiment, the first information comprises one or more fields ofa SIB.

In one embodiment, the first information comprises all or part of aMultimedia Access Control (MAC) layer signaling.

In one embodiment, the first information comprises one or more fields ofa MAC Control Element (CE).

In one embodiment, the first information comprises one or more fields ofa Physical Layer (PHY) layer signaling.

In one embodiment, the first information comprises one or more fields ofSidelink Control Information (SCI).

In one embodiment, a definition of the SCI refers to 3GPP TS38. 212.

In one embodiment, the first information comprises one or more fields ofDownlink Control Information (DCI).

In one embodiment, the first information is semi-statically configured.

In one embodiment, the first information is an RRC IE.

In one embodiment, the first information is dynamically configured.

In one embodiment, the first information is SCI.

In one embodiment, the first information is DCI.

In one embodiment, the first information comprises a parameterTDD-UL-DL-ConfigurationCommon.

In one embodiment, a definition of the parameterTDD-UL-DL-ConfigurationCommon refers to 3GPP TS38.331.

In one embodiment, the first information comprises a parameterTDD-UL-DL-ConfigDedicated.

In one embodiment, a definition of the parameterTDD-UL-DL-ConfigDedicated refers to 3GPP TS38.331.

In one embodiment, the first information comprises a parameterTTDD-UL-DL-Pattern.

In one embodiment, a definition of the parameter TDD-UL-DL-Patternrefers to 3GPP TS38.331, chapter 6.3.2.

In one embodiment, the first information comprises a slot format.

In one embodiment, the first information comprises a Slot FormatIndicator (SFI).

In one embodiment, the first information comprises a second bitmap,which comprises a positive integer number of bits arranged in order, andthe second bitmap corresponds to the first time-unit format.

In one embodiment, the second bitmap is used for indicating the firsttime-unit format.

In one embodiment, the positive integer number of bits arranged in ordercomprised in the second bitmap respectively correspond to a positiveinteger number of multicarriers comprised in a first time unit in thepresent disclosure.

In one embodiment, the first symbol is one of the positive integernumber of multicarrier symbol(s) comprised in the first time unit, and asecond bit is a bit corresponding to the first symbol in the secondbitmap.

In one embodiment, when a value of the second bit is a third value, thefirst symbol is the first-type symbol.

In one embodiment, when a value of the second bit is a fourth value, thefirst symbol is not the first-type symbol.

In one embodiment, when a value of the second bit is a fourth value, thefirst symbol is the second-type symbol.

In one embodiment, the third value is 1.

In one embodiment, the fourth value is 0.

In one embodiment, the third value is a Boolean value “TRUE”.

In one embodiment, the fourth value is a Boolean value “FALSE”.

In one embodiment, the first information is used for indicating thefirst time-unit format out of a time-unit-format list in the presentdisclosure.

In one embodiment, the first information comprises an index of the firsttime-unit format in a time-unit-format list in the present disclosure.

In one embodiment, the first information comprises a configurationperiod of the first time-unit format.

In one embodiment, the first information comprises a number offirst-type symbols comprised in the first time-unit format.

In one embodiment, the second information comprises a first bitmap.

In one embodiment, the second information directly indicates the firstbitmap.

In one embodiment, the second information indirectly indicates the firstbitmap.

In one embodiment, the second information is pre-defined.

In one embodiment, the second information is pre-configured.

In one embodiment, the second information is Broadcast.

In one embodiment, the second information is Groupcast.

In one embodiment, the second information is Unicast.

In one embodiment, the second information is Cell-specific.

In one embodiment, the second information is UE-specific.

In one embodiment, the second information is transmitted through aDL-SCH.

In one embodiment, the second information is transmitted through aSL-SCH.

In one embodiment, the second information is transmitted through aPDCCH.

In one embodiment, the second information is transmitted through aPDSCH.

In one embodiment, the second information is transmitted through a PDCCHand a PDSCH.

In one embodiment, the second information is transmitted through aPSCCH.

In one embodiment, the second information is transmitted through aPSSCH.

In one embodiment, the second information is transmitted through a PSCCHand a PSSCH.

In one embodiment, the second information comprises all or part of ahigher-layer signaling.

In one embodiment, the second information comprises all or part of anRRC signaling.

In one embodiment, the second information comprises one or more fieldsof an RRC IE.

In one embodiment, the second information comprises one or more fieldsof a SIB.

In one embodiment, the second information comprises all or part of aMAC-layer signaling.

In one embodiment, the second information comprises one or more fieldsof a MAC CE.

In one embodiment, the second information comprises one or more fieldsof a PHY layer signaling.

In one embodiment, the second information comprises one or more fieldsof SCI.

In one embodiment, the second information comprises one or more fieldsof DCI.

In one embodiment, the second information is semi-statically configured.

In one embodiment, the second information is an RRC IE.

In one embodiment, the second information is dynamically configured.

In one embodiment, the second information is SCI.

In one embodiment, the second information is DCI.

In one embodiment, the second information is generated at a higher-layerof the first node.

In one embodiment, the second information is transmitted from ahigher-layer of the first node to a physical layer of the first node.

In one embodiment, the determining second information comprises that aphysical layer of the first node receives the second information from ahigher-layer of the first node.

In one embodiment, the determining second information comprises that aphysical layer of the first node receives the second informationdelivered from a higher-layer of the first node.

In one embodiment, the determining second information comprises that thesecond information obtained by the first node from a higher-layersignaling delivered by a higher layer of the first node.

In one embodiment, the determining second information comprises that aphysical layer of the first node receives a higher-layer signalingtransmitted by a higher layer of the first node, and obtains the secondinformation from the received higher-layer signaling transmitted by ahigher layer of the first node.

In one embodiment, the determining second information comprises that thefirst node obtains the second information from a received radio signal.

In one embodiment, the determining second information comprises that thefirst node receives a radio signal from an air interface, and obtainsthe second information from the radio signal received from the airinterface.

In one embodiment, a transmitter of the first information and atransmitter of the second information are Non-Co-Located.

In one embodiment, a transmitter of the first information is a secondnode in the present disclosure, and a transmitter of the secondinformation is the first node in the present disclosure.

In one embodiment, a transmitter of the first information is a secondnode in the present disclosure, and a transmitter of the secondinformation is a communication node other than the second node and thefirst node.

In one embodiment, a transmitter of the first information is a UE, and atransmitter of the second information is a base station.

In one embodiment, a transmitter of the first information is a UE, and atransmitter of the second information is a relay.

In one embodiment, a transmitter of the first information is a relay,and a transmitter of the second information is a base station.

In one embodiment, a transmitter of the first information and atransmitter of the second information are respectively two differentUEs.

In one embodiment, a Backhaul Link between a transmitter of the firstinformation and a transmitter of the second information is non-ideal(that is, a delay cannot be ignored).

In one embodiment, a transmitter of the first information and atransmitter of the second information do not share a same set ofBaseBand device.

In one embodiment, the first time-domain-resource-block subset comprisesQ1 first-type time-domain-resource block(s), and any of the Q1first-type time-domain-resource block(s) is one of Q first-typetime-domain-resource blocks, the Q1 being a positive integer not greaterthan the Q.

In one embodiment, the first time-domain-resource-block subset comprisesa first candidate time-domain resource pool, the first candidatetime-domain-resource pool comprises Q2 first-type time-domain-resourceblock(s), and the first candidate time-domain-resource pool comprisesthe first resource pool, the Q2 being a positive integer not greaterthan the Q1.

In one embodiment, a first candidate time-domain-resource pool isindicated by the second information out of the firsttime-domain-resource-block subset, the first candidatetime-domain-resource pool comprises Q2 first-type time-domain-resourceblock(s), and any of the Q2 first-type time-domain-resource block(s)comprised in the first candidate time-domain-resource pool belongs tothe first time-domain-resource-block subset, the Q2 being a positiveinteger not greater than the Q1.

In one embodiment, any of the Q2 first-type time-domain-resourceblock(s) comprised in the first candidate time-domain-resource pool isone of Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block sub set.

In one embodiment, the first candidate time-domain-resource pool and thefirst resource pool occupy a same time-domain-resource unit in timedomain.

In one embodiment, the first candidate time-domain-resource pool is atime-domain-resource unit occupied by the first resource pool in timedomain.

In one embodiment, the first candidate time-domain-resource poolcomprises a time-domain-resource unit occupied by the first resourcepool in time domain.

In one embodiment, at least one of the Q2 first-typetime-domain-resource block(s) comprised in the first candidatetime-domain-resource pool does not belong to a time-domain-resource unitoccupied by the first resource pool in time domain.

In one embodiment, the first candidate time-domain-resource block is afirst-type time-domain-resource block comprised in the firsttime-domain-resource-block subset, and the first candidatetime-domain-resource pool is a time-domain-resource unit occupied by thefirst resource pool.

In one embodiment, the second candidate time-domain-resource block is afirst-type time-domain-resource block comprised in the firsttime-domain-resource-block subset, and the first candidatetime-domain-resource pool comprises a time-domain-resource unit occupiedby the first resource pool.

In one embodiment, the first information comprises the first bitmap,which comprises a positive integer number of bits arranged in order.

In one embodiment, the positive integer number of bits arranged in ordercomprised in the first bitmap respectively correspond to the positiveinteger number of first-type time-domain-resource blocks among the firsttime-domain-resource-block subset.

In one embodiment, the first bitmap is used for indicating a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset.

In one embodiment, the first bitmap is used for indicating the firstcandidate time-domain-resource pool out of the firsttime-domain-resource-block subset.

In one embodiment, the first bitmap is used for indicating the Q2first-type time-domain-resource block(s) comprised in the firstcandidate time-domain-resource pool out of the firsttime-domain-resource-block subset.

In one embodiment, the first bitmap is used for indicating at least oneof the Q2 first-type time-domain-resource block(s) comprised in thefirst candidate time-domain-resource pool out of the firsttime-domain-resource-block subset.

In one embodiment, the second information comprises atime-domain-resource unit occupied by the first candidate time-domainresource pool.

In one embodiment, the second information comprises a time-frequencyresource unit occupied by the first candidate time-domain resource pool.

In one embodiment, the second information comprises atime-domain-resource unit occupied by any of the Q2 first-typetime-domain-resource block(s) comprised in the first candidatetime-domain resource pool.

In one embodiment, the second information comprises atime-domain-resource unit occupied by at least one of the Q2 first-typetime-domain-resource block(s) comprised in the first candidatetime-domain resource pool.

Embodiment 2

Embodiment 2 illustrates a schematic diagram of a network architectureaccording to the present disclosure, as shown in FIG. 2 .

FIG. 2 illustrates a network architecture 200 of 5G NR, Long-TermEvolution (LTE) and Long-Term Evolution Advanced (LTE-A) systems. The 5GNR or LTE network architecture 200 may be called an Evolved PacketSystem (EPS) 200 or some other applicable terms. The EPS 200 maycomprise one or more UEs 201, a NG-RAN 202, an Evolved PacketCore/5G-Core Network (EPC/5G-CN) 210, a Home Subscriber Server (HSS) 220and an Internet Service 230. The EPS may be interconnected with otheraccess networks. For simple description, the entities/interfaces are notshown. As shown in the figure, the EPS 200 provides packet switchingservices. Those skilled in the art will find it easy to understand thatvarious concepts presented throughout the present disclosure can beextended to networks providing circuit switching services or othercellular networks. The NG-RAN comprises an NR node B (gNB) 203 and othergNBs 204. The gNB 203 provides UE 201 oriented user plane and controlplane protocol terminations. The gNB 203 may be connected to other gNBs204 via an Xn interface (for example, backhaul). The gNB 203 may becalled a base station, a base transceiver station, a radio base station,a radio transceiver, a transceiver function, a Base Service Set (BSS),an Extended Service Set (ESS), a Transmit-Receive Point (TRP) or someother applicable terms. The gNB 203 provides an access point of theEPC/5G-CN 210 for the UE 201. Examples of the UE 201 include cellularphones, smart phones, Session Initiation Protocol (SIP) phones, laptopcomputers, Personal Digital Assistant (PDA), satellite Radios,non-terrestrial base station communications, Satellite MobileCommunications, Global Positioning Systems (GPSs), multimedia devices,video devices, digital audio players (for example, MP3 players),cameras, game consoles, unmanned aerial vehicles (UAV), aircrafts,narrow-band Internet of Things (IoT) devices, machine-type communicationdevices, land vehicles, automobiles, wearable devices, or any othersimilar functional devices. Those skilled in the art also can call theUE 201 a mobile station, a subscriber station, a mobile unit, asubscriber unit, a wireless unit, a remote unit, a mobile device, awireless device, a radio communication device, a remote device, a mobilesubscriber station, an access terminal, a mobile terminal, a wirelessterminal, a remote terminal, a handset, a user proxy, a mobile client, aclient or some other appropriate terms. The gNB 203 is connected to theEPC/5G-CN 210 via an S1/NG interface. The EPC/5G-CN 210 comprises aMobility Management Entity (MME)/Authentication Management Field(AMF)/User Plane Function (UPF) 211, other MMES/AMFs/UPFs 214, a ServiceGateway (S-GW) 212 and a Packet Date Network Gateway (P-GW) 213. TheMME/AMF/UPF 211 is a control node for processing a signaling between theUE 201 and the EPC/5G-CN 210. Generally, the MME/AMF/UPF 211 providesbearer and connection management. All user Internet Protocol (IP)packets are transmitted through the S-GW 212, the S-GW 212 is connectedto the P-GW 213. The P-GW 213 provides UE IP address allocation andother functions. The P-GW 213 is connected to the Internet Service 230.The Internet Service 230 comprises IP services corresponding tooperators, specifically including Internet, Intranet, IP MultimediaSubsystem (IMS) and Packet Switching Streaming Services (PSS).

In one embodiment, the first node in the present disclosure comprisesthe UE 201.

In one embodiment, the second node in the present disclosure comprisesthe UE 241.

In one embodiment, the UE in the present disclosure comprises the UE201.

In one embodiment, the UE in the present disclosure comprises the UE241.

In one embodiment, the UE 201 supports sidelink transmissions.

In one embodiment, the UE 201 supports a PC5 interface.

In one embodiment, the UE 241 supports sidelink transmissions.

In one embodiment, the UE 241 supports a PC5 interface.

In one embodiment, a transmitter of the first information in the presentdisclosure comprises the UE 241.

In one embodiment, a receiver of the first information in the presentdisclosure comprises the UE 201.

In one embodiment, a transmitter of the second information in thepresent disclosure comprises the UE 201.

In one embodiment, a transmitter of the second information in thepresent disclosure comprises the gNB 203.

In one embodiment, a receiver of the second information in the presentdisclosure comprises the UE 201.

In one embodiment, a transmitter of a first signal in the presentdisclosure comprises the UE 201.

In one embodiment, a receiver of a first signal in the presentdisclosure comprises the UE 241.

Embodiment 3

Embodiment 3 illustrates a schematic diagram of a radio protocolarchitecture of a user plane and a control plane according to oneembodiment of the present disclosure, as shown in FIG. 3 . FIG. 3 is aschematic diagram illustrating an embodiment of a radio protocolarchitecture of a user plane 350 and a control plane 300. In FIG. 3 ,the radio protocol architecture for a first communication node (UE, gNBor RSU in V2X) and a second communication node (gNB, UE or RSU in V2X),or between two UEs is represented by three layers, which are a layer 1,a layer 2 and a layer 3, respectively. The layer 1 (L1) is the lowestlayer and performs signal processing functions of various PHY layers.The L1 is called PHY 301 in the present disclosure. The layer 2 (L2) 305is above the PHY 301, and is in charge of a link between the firstcommunication node and the second communication node, as well as two UEsvia the PHY 301. The L2 305 comprises a Medium Access Control (MAC)sublayer 302, a Radio Link Control (RLC) sublayer 303 and a Packet DataConvergence Protocol (PDCP) sublayer 304. All the three sublayersterminate at the second communication node. The PDCP sublayer 304provides multiplexing among variable radio bearers and logical channels.The PDCP sublayer 304 provides security by encrypting a packet andprovides support for the first communication node handover betweensecond communication nodes. The RLC sublayer 303 provides segmentationand reassembling of a higher-layer packet, retransmission of a lostpacket, and reordering of a data packet so as to compensate thedisordered receiving caused by HARQ. The MAC sublayer 302 providesmultiplexing between a logical channel and a transport channel. The MACsublayer 302 is also responsible for allocating between firstcommunication nodes various radio resources (i.e., resource block) in acell. The MAC sublayer 302 is also in charge of HARQ operation. TheRadio Resource Control (RRC) sublayer 306 in layer 3 (L3) of the controlplane 300 is responsible for acquiring radio resources (i.e., radiobearer) and configuring the lower layer with an RRC signaling betweenthe second communication node and the first communication node. Theradio protocol architecture of the user plane 350 comprises layer 1 (L1)and layer 2 (L2). In the user plane 350, the radio protocol architecturefor the first communication node and the second communication node isalmost the same as the corresponding layer and sublayer in the controlplane 300 for physical layer 351, PDCP sublayer 354, RLC sublayer 353and MAC sublayer 352 in L2 layer 355, but the PDCP sublayer 354 alsoprovides a header compression for a higher-layer packet so as to reducea radio transmission overhead. The L2 layer 355 in the user plane 350also includes Service Data Adaptation Protocol (SDAP) sublayer 356,which is responsible for the mapping between QoS flow and Data RadioBearer (DRB) to support the diversity of traffic. Although not describedin FIG. 3 , the first communication node may comprise several higherlayers above the L2 layer 355, such as a network layer (e.g., IP layer)terminated at a P-GW of the network side and an application layerterminated at the other side of the connection (e.g., a peer UE, aserver, etc.).

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the first node in the present disclosure.

In one embodiment, the radio protocol architecture in FIG. 3 isapplicable to the second node in the present disclosure.

In one embodiment, the first information in the present disclosure isgenerated by the PHY 301.

In one embodiment, the first information in the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the second information in the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the second information in the present disclosure istransmitted to the PHY 301 via the MAC sublayer 302.

In one embodiment, the first signal in the present disclosure isgenerated by the SDAP sublayer 356.

In one embodiment, the first signal in the present disclosure istransmitted to the PHY 351 via the MAC sublayer 352.

In one embodiment, the first signal in the present disclosure isgenerated by the RRC sublayer 306.

In one embodiment, the first signal in the present disclosure istransmitted to the PHY 301 via the MAC sublayer 302.

Embodiment 4

Embodiment 4 illustrates a schematic diagram of a first communicationdevice and a second communication device in the present disclosure, asshown in FIG. 4 . FIG. 4 is a block diagram of a first communicationdevice 410 and a second communication device 450 that are incommunication with each other in access network.

The first communication device 410 comprises a controller/processor 475,a memory 476, a receiving processor 470, a transmitting processor 416, amulti-antenna receiving processor 472, a multi-antenna transmittingprocessor 471, a transmitter/receiver 418 and an antenna 420.

The second communication device 450 comprises a controller/processor459, a memory 460, a data source 467, a transmitting processor 468, areceiving processor 456, a multi-antenna transmitting processor 457, amulti-antenna receiving processor 458, a transmitter/receiver 454 and anantenna 452.

In the transmission from the first communication device 410 to thesecond communication device 450, at the first communication device 410,a higher-layer packet from the core network is provided to acontroller/processor 475. The controller/processor 475 provides afunction of the L2 layer. In the transmission from the firstcommunication device 410 to the first communication device 450, thecontroller/processor 475 provides header compression, encryption, packetsegmentation and reordering, and multiplexing between a logical channeland a transport channel, and radio resources allocation to the secondcommunication device 450 based on various priorities. Thecontroller/processor 475 is also responsible for retransmission of alost packet and a signaling to the second communication device 450. Thetransmitting processor 416 and the multi-antenna transmitting processor471 perform various signal processing functions used for the L1 layer(that is, PHY). The transmitting processor 416 performs coding andinterleaving so as to ensure an FEC (Forward Error Correction) at thesecond communication device 450, and the mapping to signal clusterscorresponding to each modulation scheme (i.e., BPSK, QPSK, M-PSK, M-QAM,etc.). The multi-antenna transmitting processor 471 performs digitalspatial precoding, including codebook-based precoding andnon-codebook-based precoding, and beamforming on encoded and modulatedsymbols to generate one or more spatial streams. The transmittingprocessor 416 then maps each spatial stream into a subcarrier. Themapped symbols are multiplexed with a reference signal (i.e., pilotfrequency) in time domain and/or frequency domain, and then they areassembled through Inverse Fast Fourier Transform (IFFT) to generate aphysical channel carrying time-domain multicarrier symbol streams. Afterthat the multi-antenna transmitting processor 471 performs transmissionanalog precoding/beamforming on the time-domain multicarrier symbolstreams. Each transmitter 418 converts a baseband multicarrier symbolstream provided by the multi-antenna transmitting processor 471 into aradio frequency (RF) stream. Each radio frequency stream is laterprovided to different antennas 420.

In the transmission from the first communication device 410 to thesecond communication device 450, at the second communication device 450,each receiver 454 receives a signal via a corresponding antenna 452.Each receiver 454 recovers information modulated to the RF carrier,converts the radio frequency stream into a baseband multicarrier symbolstream to be provided to the receiving processor 456. The receivingprocessor 456 and the multi-antenna receiving processor 458 performsignal processing functions of the L1 layer. The multi-antenna receivingprocessor 458 performs receiving analog precoding/beamforming on abaseband multicarrier symbol stream from the receiver 454. The receivingprocessor 456 converts the baseband multicarrier symbol stream afterreceiving the analog precoding/beamforming from time domain intofrequency domain using FFT. In frequency domain, a physical layer datasignal and a reference signal are de-multiplexed by the receivingprocessor 456, wherein the reference signal is used for channelestimation, while the data signal is subjected to multi-antennadetection in the multi-antenna receiving processor 458 to recover anythe second communication device-targeted spatial stream. Symbols on eachspatial stream are demodulated and recovered in the receiving processor456 to generate a soft decision. Then the receiving processor 456decodes and de-interleaves the soft decision to recover the higher-layerdata and control signal transmitted on the physical channel by the firstcommunication node 410. Next, the higher-layer data and control signalare provided to the controller/processor 459. The controller/processor459 performs functions of the L2 layer. The controller/processor 459 canbe connected to a memory 460 that stores program code and data. Thememory 460 can be called a computer readable medium. In the transmissionfrom the first communication device 410 to the second communicationdevice 450, the controller/processor 459 provides demultiplexing betweena transport channel and a logical channel, packet reassembling,decryption, header decompression and control signal processing so as torecover a higher-layer packet from the core network. The higher-layerpacket is later provided to all protocol layers above the L2 layer, orvarious control signals can be provided to the L3 layer for processing.

In the transmission from the second communication device to the firstcommunication device, at the second communication device 450, the datasource 467 is configured to provide a higher-layer packet to thecontroller/processor 459. The data source 467 represents all protocollayers above the L2 layer. Similar to a transmitting function of thefirst communication device 410 described in the transmission from thefirst communication device 410 to the second communication device 450,the controller/processor 459 performs header compression, encryption,packet segmentation and reordering, and multiplexing between a logicalchannel and a transport channel based on radio resources allocation soas to provide the L2 layer functions used for the user plane and thecontrol plane. The controller/processor 459 is also responsible forretransmission of a lost packet, and a signaling to the firstcommunication device 410. The transmitting processor 468 performsmodulation mapping and channel coding. The multi-antenna transmittingprocessor 457 implements digital multi-antenna spatial precoding,including codebook-based precoding and non-codebook-based precoding, aswell as beamforming. Following that, the generated spatial streams aremodulated into multicarrier/single-carrier symbol streams by thetransmitting processor 468, and then modulated symbol streams aresubjected to analog precoding/beamforming in the multi-antennatransmitting processor 457 and provided from the transmitters 454 toeach antenna 452. Each transmitter 454 first converts a baseband symbolstream provided by the multi-antenna transmitting processor 457 into aradio frequency symbol stream, and then provides the radio frequencysymbol stream to the antenna 452.

In the transmission from the second communication device 450 to thefirst communication device 410, the function of the first communicationdevice 410 is similar to the receiving function of the secondcommunication device 450 described in the transmission from the firstcommunication device 410 to the second communication device 450. Eachreceiver 418 receives a radio frequency signal via a correspondingantenna 420, converts the received radio frequency signal into abaseband signal, and provides the baseband signal to the multi-antennareceiving processor 472 and the receiving processor 470. The receivingprocessor 470 and multi-antenna receiving processor 472 collectivelyperform functions of the L1 layer. The controller/processor 475 performsfunctions of the L2 layer. The controller/processor 475 can be connectedwith the memory 476 that stores program code and data. The memory 476can be called a computer readable medium. In the transmission from thesecond communication device 450 to the first communication device 410,the controller/processor 475 provides demultiplexing between a transportchannel and a logical channel, packet reassembling, decryption, headerdecompression, control signal processing so as to recover a higher-layerpacket from the UE 450. The higher-layer packet coming from thecontroller/processor 475 may be provided to the core network.

In one embodiment, the first node in the present disclosure comprisesthe second communication device 450, and the second node in the presentdisclosure comprises the first communication device 410.

In one subembodiment of the above embodiment, the first node is a UE,and the second node is a UE.

In one subembodiment of the above embodiment, the first node is a UE,and the second node is a relay node.

In one subembodiment of the above embodiment, the first node is a relaynode, and the second node is a UE.

In one subembodiment of the above embodiment, the second communicationdevice 450 comprises: at least one controller/processor; the at leastone controller/processor is responsible for HARQ operation.

In one subembodiment of the above embodiment, the first communicationdevice 410 comprises: at least one controller/processor; the at leastone controller/processor is responsible for HARQ operation.

In one subembodiment of the above embodiment, the first communicationdevice 410 comprises: at least one controller/processor; the at leastone controller/processor is responsible for error detection using ACKand/or NACK protocols as a way to support HARQ operation.

In one embodiment, the second communication device 450 comprises: atleast one processor and at least one memory, and the at least one memoryincludes computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor. The second communication device 450 atleast: receives first information, the first information being used toindicate a first time-unit format; determines second information; anddetermines a first resource pool; herein, a first time window comprisesQ first-type time-domain-resource blocks, Q being a positive integergreater than 1; any of the Q first-type time-domain-resource blockscomprises a positive integer number of multicarrier symbol(s); a firstsymbol is one of the positive integer number of multicarrier symbol(s)comprised in any of the Q first-type time-domain-resource blocks; thefirst time-unit format is used for indicating whether the first symbolis a first-type symbol; the second information is used for indicating apositive integer number of first-type time-domain-resource block(s) outof a first time-domain-resource-block subset, the firsttime-domain-resource-block subset comprises a positive integer number offirst-type time-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, the second communication device 450 comprises: amemory in which a computer-readable instruction program is stored,wherein the computer-readable instruction program generates an actionwhen executed by at least one processor, the action includes: receivingfirst information, the first information being used to indicate a firsttime-unit format; determining second information; and determining afirst resource pool; herein, a first time window comprises Q first-typetime-domain-resource blocks, the Q being a positive integer greater than1; any of the Q first-type time-domain-resource blocks comprises apositive integer number of multicarrier symbol(s); a first symbol is oneof the positive integer number of multicarrier symbol(s) comprised inany of the Q first-type time-domain-resource blocks; the first time-unitformat is used for indicating whether the first symbol is a first-typesymbol; the second information is used for indicating a positive integernumber of first-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset, the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, the first communication device 410 comprises: atleast one processor and at least one memory, and the at least one memoryincludes computer program codes; the at least one memory and thecomputer program codes are configured to be used in collaboration withthe at least one processor. The first communication device 410 at least:transmits first information, the first information being used toindicate a first time-unit format; herein, a first time window comprisesQ first-type time-domain-resource blocks, the Q being a positive integergreater than 1; any of the Q first-type time-domain-resource blockscomprises a positive integer number of multicarrier symbol(s); a firstsymbol is one of the positive integer number of multicarrier symbol(s)comprised in any of the Q first-type time-domain-resource blocks; thefirst time-unit format is used for indicating whether the first symbolis a first-type symbol; the second information is determined by areceiver of the first information, and the second information is usedfor indicating a positive integer number of first-typetime-domain-resource block(s) out of a first time-domain-resource-blocksubset; the first time-domain-resource-block subset comprises a positiveinteger number of first-type time-domain-resource block(s) among the Qfirst-type time-domain-resource blocks; a first resource pool comprisesa positive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, the first communication device 410 comprises: amemory in which a computer-readable instruction program is stored,wherein the computer-readable instruction program generates an actionwhen executed by at least one processor, the action includes:transmitting first information, the first information being used toindicate a first time-unit format; herein, a first time window comprisesQ first-type time-domain-resource blocks, the Q being a positive integergreater than 1; any of the Q first-type time-domain-resource blockscomprises a positive integer number of multicarrier symbol(s); a firstsymbol is one of the positive integer number of multicarrier symbol(s)comprised in any of the Q first-type time-domain-resource blocks; thefirst time-unit format is used for indicating whether the first symbolis a first-type symbol; the second information is determined by areceiver of the first information, and the second information is usedfor indicating a positive integer number of first-typetime-domain-resource block(s) out of a first time-domain-resource-blocksubset; the first time-domain-resource-block subset comprises a positiveinteger number of first-type time-domain-resource block(s) among the Qfirst-type time-domain-resource blocks; a first resource pool comprisesa positive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460, or the data source 467 isused for receiving first information in the present disclosure.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460, or the data source 467 isused for determining second information in the present disclosure.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460, or the data source 467 isused for determining a first time-domain resource subset in the presentdisclosure.

In one embodiment, at least one of the antenna 452, the receiver 454,the multi-antenna receiving processor 458, the receiving processor 456,the controller/processor 459, the memory 460, or the data source 467 isused for determining a first resource pool in the present disclosure.

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmitting processor 458, the transmitting processor468, the controller/processor 459, the memory 460, or the data sources467 is used for determining a first time-frequency-resource block in afirst resource pool in the present disclosure;

In one embodiment, at least one of the antenna 452, the transmitter 454,the multi-antenna transmission processor 458, the transmitting processor468, the controller/processor 459, the memory 460, or the data source467 is used for transmitting a first signal in the firsttime-frequency-resource block in the present disclosure.

In one embodiment, at least one of the antenna 420, the transmitter 418,the multi-antenna transmitting processor 471, the transmitting processor416, the controller/processor 475, or the memory 476 is used fortransmitting first information in the present disclosure.

In one embodiment, at least one of the antenna 420, the receiver 418,the multi-antenna receiving processor 472, the receiving processor 470,the controller/processor 475, or the memory 476 is used for receiving afirst signal in a first time-frequency-resource block in the presentdisclosure.

Embodiment 5

Embodiment 5 illustrates a flowchart of transmission of a radio signalaccording to one embodiment in the present disclosure, as shown in FIG.5 . In FIG. 5 , a first node U1 and a second node U2 communicate throughan air interface. In FIG. 5 , steps in dotted box F0 and in dotted boxF1 are respectively optional.

The first node U1 receives first information in step S11; determinessecond information in step S12; determines whether a first candidatetime-domain-resource block belongs to a first time-domain-resource-blocksubset in step S13; determines whether a first candidatetime-domain-resource block belongs to a first resource pool in step S14;determines a first time-frequency-resource block in a first resourcepool in step S15; transmits a first signal in a firsttime-frequency-resource block in step S16.

The second node U2 transmits first information in step S21; receives afirst signal in a first time-frequency-resource block in step S22.

In Embodiment 5, a first time window comprises Q first-typetime-domain-resource blocks, the Q being a positive integer greater than1; any of the Q first-type time-domain-resource blocks comprises apositive integer number of multicarrier symbol(s); a first symbol is oneof the positive integer number of multicarrier symbol(s) comprised inany of the Q first-type time-domain-resource blocks; the firstinformation is used for indicating a first time-unit format, and thefirst time-unit format is used for indicating whether the first symbolis a first-type symbol; the second information is used for indicating apositive integer number of first-type time-domain-resource block(s) outof a first time-domain-resource-block subset, the firsttime-domain-resource-block subset comprises a positive integer number offirst-type time-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool; the first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset; when the firstcandidate time-domain-resource block belongs to the firsttime-domain-resource-block subset, the second information comprises afirst bit, which corresponds to the first candidate time-domain-resourceblock and is used for determining whether the first candidatetime-domain-resource block belongs to the first resource pool; the firstresource pool comprises the first time-frequency-resource block.

In one embodiment, a time-unit-format list comprises a positive integernumber of first-type time-unit format(s), the first time-unit format isa first-type time-unit format among the time-unit-format list, and atime-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when thefirst time-unit format belongs to the time-unit-format subset, the firstcandidate time-domain-resource block does not belong to the firsttime-domain-resource-block subset.

In one embodiment, the first time-unit format is used for indicating X1multicarrier symbol(s) comprised in the first candidatetime-domain-resource block, the X1 multicarrier symbol(s) all being thefirst-type symbol(s), the X1 being a non-negative integer; when the X1is less than a first threshold, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block sub set.

In one embodiment, a step in box F0 in FIG. 5 exists.

In one embodiment, a step in box F0 in FIG. 5 does not exist.

In one embodiment, a step in box F1 in FIG. 5 exists.

In one embodiment, a step in box F1 in FIG. 5 does not exist.

In one embodiment, when a transmitter of the second information is ahigher layer of the first node, a step in box F0 in FIG. 5 does notexist.

In one embodiment, when the second information is pre-defined, a step inbox F0 in FIG. 5 does not exist.

In one embodiment, when the second information is pre-configured, a stepin box F0 in FIG. 5 does not exist.

In one embodiment, when the second information is referred based on apredefined definition, a step in box F0 in FIG. 5 does not exist.

In one embodiment, when a transmitter of the second information is not ahigher layer of the first node, a step in box F0 in FIG. 5 exists.

In one embodiment, when a transmitter of the second information isanother communication node, the another communication node is not thefirst node, and a step in box F0 in FIG. 5 exists.

In one subembodiment of the above embodiment, the another communicationnode is a base station.

In one subembodiment of the above embodiment, the another communicationnode is a relay.

In one subembodiment of the above embodiment, the another communicationnode is a UE.

In one embodiment, when a transmitter of the second information is acommunication node different from the first node, the one communicationnode does not comprise the first node, and a step in box F0 in FIG. 5exists.

In one embodiment, when a transmitter of the second information is abase station, a step in box F0 in FIG. 5 exists.

In one embodiment, when a transmitter of the second information is arelay, a step in box F0 in FIG. 5 exists.

In one embodiment, when a transmitter of the second information is a UEdifferent from the first node, a step in box F0 in FIG. 5 exists.

In one embodiment, a result in the step S13 is used for determiningwhether a step in box F1 in FIG. 5 exists.

In one embodiment, when the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset, a step in box F1in FIG. 5 exists.

In one embodiment, when the first candidate time-domain-resource blockdoes not belong to the first time-domain-resource-block subset, a stepin box F1 in FIG. 5 does not exist.

In one embodiment, when the result of the determining whether a firstcandidate time-domain-resource block belongs to a firsttime-domain-resource-block subset is “YES”, a step in box F1 in FIG. 5exists.

In one embodiment, when the result of the determining whether a firstcandidate time-domain-resource block belongs to a firsttime-domain-resource-block subset is “NO”, a step in box F1 in FIG. 5does not exist.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource block, and the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource block, and the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block sub set.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource block, and the firsttime-domain-resource-block subset comprises the first candidatetime-domain-resource block.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource block, and the firsttime-domain-resource-block subset does not comprise the first candidatetime-domain-resource block.

In one embodiment, the first time-domain-resource-block subset comprisesQ1 first-type time-domain-resource block(s), and any of the Q1first-type time-domain-resource block(s) comprised in the firsttime-domain-resource block is one of Q first-type time-domain-resourceblocks, the Q1 being a positive integer not greater than the Q.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource blocks, and the first candidatetime-domain-resource block is one of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, the first candidate time-domain-resource block is oneof the Q first-type time-domain-resource blocks, and the first candidatetime-domain-resource block is not any of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, the first time-domain-resource-block subset comprisesthe first candidate time-domain-resource block, and the first resourcepool comprises the first candidate time-domain-resource block.

In one embodiment, the first time-domain-resource-block subset comprisesthe first candidate time-domain-resource block, and the first resourcepool does not comprise the first candidate time-domain-resource block.

In one embodiment, the first resource pool comprises Q3 first-typetime-domain-resource block(s) in time domain, any of the Q3 first-typetime-domain-resource block(s) comprised in the first resource pool intime domain is one of the Q1 first-type time-domain-resource block(s)comprised in the first time-domain-resource-block subset, the Q3 being apositive integer not greater than the Q1.

In one embodiment, the first candidate time-domain-resource block is oneof the Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block subset, and the first candidatetime-domain-resource block is one of the Q3 first-typetime-domain-resource block(s) comprised in the first resource pool intime domain.

In one embodiment, the first candidate time-domain-resource block is oneof the Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block subset, and the first candidatetime-domain-resource block is not any of the Q3 first-typetime-domain-resource block(s) comprised in the first resource pool intime domain.

In one embodiment, the first time-unit format is used for indicating atransmission format of the first candidate time-domain-resource block.

In one embodiment, the first candidate time-domain-resource blockcomprises a positive integer number of time-domain-resource unit(s), andthe first time-unit format is used for indicating a transmission formatof any of the positive integer number of time-domain-resource unit(s)comprised in the first candidate time-domain-resource block.

In one embodiment, the first candidate time-domain-resource blockcomprises a positive integer number of time-domain-resource unit(s), anda first time unit is one of the positive integer number of time domainresource unit(s) comprised in the first candidate time-domain-resourceblock.

In one embodiment, the first candidate time-domain-resource block is thesame as the first time unit.

In one embodiment, the first candidate time-domain-resource block is thefirst time unit.

In one embodiment, the first time-frequency-resource block is differentfrom the first candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block is the sameas the first candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block is orthogonalto the first candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block overlaps withthe first candidate time-domain-resource block in time domain.

In one embodiment, the first resource pool comprises the firsttime-frequency-resource block.

In one embodiment, the first time-frequency-resource block belongs tothe first resource pool.

In one embodiment, the first resource pool comprises a positive integernumber of first-type time-frequency-resource block(s), and the firsttime-frequency-resource block is one of the positive integer number offirst-type time-frequency-resource block(s).

In one embodiment, the first resource pool comprises a positive integernumber of first-type time-domain-resource block(s) among the firsttime-domain-resource-block subset in time domain, and the positiveinteger number of first-type time-domain-resource block(s) comprised inthe first resource pool in time domain respectively correspond(s) to thepositive integer number of first-type time-frequency-resource block(s)comprised in the first resource pool.

In one embodiment, a time-domain-resource unit occupied by any of thepositive integer number of first-type time-frequency-resource block(s)comprised in the first resource pool in time domain is one of thepositive integer number of first-type time-domain-resource block(s)comprised in the first resource pool in time domain.

In one embodiment, a time-domain-resource unit occupied by any of thepositive integer number of first-type time-frequency-resource block(s)comprised in the first resource pool in time domain is the same as atime-domain-resource unit occupied by one of the positive integer numberof first-type time-domain-resource block(s) comprised in the firstresource pool in time domain.

In one embodiment, the first time-frequency-resource block comprises apositive integer number of time-domain-resource unit(s) in time domain.

In one embodiment, a positive integer number of time-domain-resourceunits comprised in the first time-frequency-resource block areconsecutive in time.

In one embodiment, at least two of a positive integer number oftime-domain-resource units comprised in the firsttime-frequency-resource block are non-consecutive in time.

In one embodiment, the first time-frequency-resource block comprises apositive integer number of frequency-domain resource unit(s) infrequency domain.

In one embodiment, a positive integer number of frequency-domainresource units comprised in the first time-frequency-resource block areconsecutive in frequency domain.

In one embodiment, at least two of a positive integer number offrequency-domain resource units comprised in the firsttime-frequency-resource block are non-consecutive in frequency domain.

In one embodiment, the first time-frequency-resource block comprises apositive integer number of time-frequency-resource unit(s).

In one embodiment, a positive integer number of time-frequency-resourceunits comprised in the first time-frequency-resource block areconsecutive in time domain.

In one embodiment, a positive integer number of time-frequency-resourceunits comprised in the first time-frequency-resource block areconsecutive in frequency domain.

In one embodiment, at least two of a positive integer number oftime-frequency-resource units comprised in the firsttime-frequency-resource block are non-consecutive in time domain.

In one embodiment, at least two of a positive integer number oftime-frequency-resource units comprised in the firsttime-frequency-resource block are non-consecutive in frequency domain.

In one embodiment, the first time-frequency-resource block comprises aPSCCH.

In one embodiment, the first time-frequency-resource block comprises aPSSCH.

In one embodiment, the first time-frequency-resource block comprises aPSFCH.

In one embodiment, the first time-frequency-resource block comprises aPSCCH and a PSSCH.

In one embodiment, the first time-frequency-resource block comprises aPSCCH and a PSFCH.

In one embodiment, the first time-frequency-resource block comprises aPSCCH, a PSSCH and a PSFCH.

In one embodiment, the determining a first time-frequency-resource blockcomprises that the first time-frequency-resource block is indicated.

In one embodiment, the determining a first time-frequency-resource blockcomprises that the first time-frequency-resource block is selectedindependently by the first node.

In one embodiment, the first time-frequency-resource block isdynamically-configured.

In one embodiment, the first time-frequency-resource block is indicatedby a physical-layer signaling.

In one embodiment, the first time-frequency-resource block is indicatedby DCI.

In one embodiment, the first time-frequency-resource block is indicatedby SCI.

In one embodiment, the first time-frequency-resource block issemi-statically configured.

In one embodiment, the first time-frequency-resource block is configuredby a higher-layer signaling.

In one embodiment, the first time-frequency-resource block is configuredby an RRC signaling.

In one embodiment, the first time-frequency-resource block is configuredby an RRC IE.

In one embodiment, the first time-frequency-resource block is selectedindependently by the first node.

In one embodiment, the first time-frequency-resource block is obtainedby the first node through Sensing.

In one embodiment, the first time-frequency-resource block is obtainedby the first node through a Resource Selection.

In one embodiment, the first time-frequency-resource block is obtainedby the first node through a Resource Re-selection.

In one embodiment, the first time-frequency-resource block is obtainedby the first node according to a received signal quality.

In one embodiment, the signal quality comprises a Reference SignalReceiving Power (RSRP).

In one embodiment, the signal quality comprises a Reference SignalReceiving Quality (RSRQ).

In one embodiment, the signal quality comprises a Received SignalStrength Indication (RSSI).

In one embodiment, the signal quality is an average power of all signalsreceived in a positive integer number of time-frequency-resourceunit(s).

In one embodiment, all signals received in the positive integer numberof time-frequency-resource unit(s) comprise a Reference Signal (RS), adata signal, an interference signal and a noise signal.

In one embodiment, the signal quality comprises a Signal to Noise Ratio(SNR).

In one embodiment, the signal quality comprises a Signal to Interferenceplus Noise Ratio (SINR).

In one embodiment, the first signal is a baseband signal.

In one embodiment, the first signal is a radio signal.

In one embodiment, the first signal is transmitted through a PSCCH.

In one embodiment, the first signal is transmitted through a PSSCH.

In one embodiment, the first signal is transmitted through a PSCCH and aPSSCH.

In one embodiment, the first signal is Broadcast.

In one embodiment, the first signal is Groupcast.

In one embodiment, the first signal is Unicast.

In one embodiment, the first signal is Cell-specific.

In one embodiment, the first signal is UE-specific.

In one embodiment, the first signal comprises a RS.

In one embodiment, the first signal comprises a Demodulation ReferenceSignal (DMRS).

In one embodiment, the first signal comprises a Channel StateInformation-Reference Signal (CSI-RS).

In one embodiment, the first signal comprises a Sidelink DMRS (SL DMRS).

In one embodiment, the first signal comprises a PSSCH DMRS (that is, aDMRS demodulating a PSSCH).

In one embodiment, the first signal comprises a PSCCH DMRS (that is, aDMRS demodulating a PSCCH).

In one embodiment, the first signal comprises a Sidelink CSI-RS (SLCSI-RS).

In one embodiment, the first signal is generated by a pseudo-randomsequence.

In one embodiment, the first signal is generated by a Gold sequence.

In one embodiment, the first signal is generated by a M-sequence.

In one embodiment, the first signal is generated by a Zadeoff-Chusequence.

In one embodiment, a generation method of the first signal refers to3GPP TS38. 211, chapter 7.4.1.5.

In one embodiment, the first signal comprises a first bit block, and thefirst bit block comprises a positive integer number of bits arranged inorder.

In one embodiment, the first bit block comprises a positive integernumber of Code Block(s)(CB).

In one embodiment, the first bit block comprises a positive integernumber of Code Block Group(s)(CBG).

In one embodiment, the first bit block comprises a Transport Block (TB).

In one embodiment, the first bit block is obtained by a TB subjected totransport block-level Cyclic Redundancy Check (CRC) attachment.

In one embodiment, the first bit block is a CB in a code block obtainedby a TB sequentially subjected to transport block-level CRC attachment,Code Block Segmentation, and code block-level CRC attachment.

In one embodiment, the first signal is obtained after all or part ofbits of the first bit block is sequentially subjected to transportblock-level CRC attachment, code block segmentation, code block-levelCRC attachment, channel coding, rate matching, code block concatenation,scrambling, modulation, layer mapping, antenna port mapping, mapping tophysical resource blocks, baseband signal generation, modulation andupconversion.

In one embodiment, the first signal is an output after the first bitblock is sequentially subjected to a modulation mapper, a layer mapper,precoding, a resource element mapper, and multicarrier symbolgeneration.

In one embodiment, the channel coding is based on a polar code.

In one embodiment, the channel coding is based on a Low-densityParity-Check (LDPC) code.

In one embodiment, only the first bit block is used for generating thefirst signal.

In one embodiment, there exists a bit block other than the first bitblock being used for generating the first signal.

In one embodiment, the first bit block comprises data transmitted on aSidelink Shared Channel (SL-SCH).

In one embodiment, the first signal comprises all or part of ahigher-layer signaling.

In one embodiment, the first signal comprises all or part of an RRCsignaling.

In one embodiment, the first signal comprises one or more fields of anRRC IE.

In one embodiment, the first signal comprises all or part of a MAC layersignaling.

In one embodiment, the first signal comprises one or more fields of aMAC CE.

In one embodiment, the first signal comprises one or more fields of aPHY layer signaling.

In one embodiment, the first signal comprises one or more fields of apiece of SCI.

Embodiment 6

Embodiment 6 illustrates a flowchart of transmission of a radio signalaccording to one embodiment of the present disclosure, as shown in FIG.6 . In FIG. 6 , a first node U3 and a second node U4 communicate throughan air interface. In FIG. 6 , a step in dotted box F2 is optional.

The first node U3 transmits first information in step S31; determinessecond information in step S32; determines a firsttime-domain-resource-block subset in step S33; determines whether asecond candidate time-domain-resource block belongs to a first resourcepool in step S34; determines a first time-frequency-resource block in afirst resource pool in step S35; transmits a first signal in a firsttime-frequency-resource block in step S36.

The second node U4 transmits first information in step S41; receives afirst signal in a first time-frequency-resource block in step S42.

In Embodiment 6, a first time window comprises Q first-typetime-domain-resource blocks, the Q being a positive integer greater than1; any of the Q first-type time-domain-resource blocks comprises apositive integer number of multicarrier symbol(s); a first symbol is oneof the positive integer number of multicarrier symbol(s) comprised inany of the Q first-type time-domain-resource blocks; the firstinformation is used for indicating a first time-unit format, and thefirst time-unit format is used for indicating whether the first symbolis a first-type symbol; the second information is used for indicating apositive integer number of first-type time-domain-resource block(s) outof a first time-domain-resource-block subset, the firsttime-domain-resource-block subset comprises a positive integer number offirst-type time-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool; the second candidatetime-domain-resource block is a first-type time-domain-resource block inthe first time-domain-resource-block subset; the second informationcomprises a second bit, which corresponds to the second candidatetime-domain-resource block;

In one embodiment, the first time-unit format is used for indicating X2multicarrier symbol(s) comprised in the second candidatetime-domain-resource block, the X2 multicarrier symbol(s) all being thefirst-type symbol(s), X2 being a non-negative integer; when a value ofthe second bit is a first value and the X2 is not less than the firstthreshold, the second candidate time-domain-resource block belongs tothe first resource pool.

In one embodiment, a time-unit-format list comprises a positive integernumber of first-type time-unit format(s), the first time-unit format isa first-type time-unit format among the time-unit-format list, and atime-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when avalue of the second bit is a first value and the first time-unit formatdoes not belong to the time-unit-format subset, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, a step in box F2 in FIG. 6 exists.

In one embodiment, a step in box F2 in FIG. 6 does not exist.

In one embodiment, when a transmitter of the second information is ahigher layer of the first node, a step in box F2 in FIG. 6 does notexist.

In one embodiment, when the second information is pre-defined, a step inbox F2 in FIG. 6 does not exist.

In one embodiment, when the second information is pre-configured, a stepin box F2 in FIG. 6 does not exist.

In one embodiment, when the second information is referred based on apredefined definition, a step in box F2 in FIG. 6 does not exist.

In one embodiment, when a transmitter of the second information is not ahigher layer of the first node, a step in box F2 in FIG. 6 exists.

In one embodiment, when a transmitter of the second information isanother communication node, the another communication node is not thefirst node, and a step in box F2 in FIG. 6 exists.

In one subembodiment of the above embodiment, the another communicationnode is a base station.

In one subembodiment of the above embodiment, the another communicationnode is a relay.

In one subembodiment of the above embodiment, the another communicationnode is a UE.

In one embodiment, when a transmitter of the second information is acommunication node different from the first node, the one communicationnode does not comprise the first node, and a step in box F2 in FIG. 6exists.

In one embodiment, when a transmitter of the second information is abase station, a step in box F2 in FIG. 6 exists.

In one embodiment, when a transmitter of the second information is arelay, a step in box F2 in FIG. 6 exists.

In one embodiment, when a transmitter of the second information is a UEdifferent from the first node, a step in box F2 in FIG. 6 exists.

In one embodiment, the first time-domain-resource-block subset comprisesa positive integer number of first-type time-domain-resource block(s),and the second candidate time-domain-resource block is one of thepositive integer number of first-type time-domain-resource block(s)comprised in the first time-domain-resource-block subset.

In one embodiment, the first time-domain-resource-block subset comprisesthe second candidate time-domain-resource block, and the first resourcepool comprises the second candidate time-domain-resource block in timedomain.

In one embodiment, the first time-domain-resource-block subset comprisesthe second candidate time-domain-resource block, and the first resourcepool does not comprise the second candidate time-domain-resource blockin time domain.

In one embodiment, the second candidate time-domain-resource block isone of the Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block subset, and the second candidatetime-domain-resource block is one of the Q3 first-typetime-domain-resource block(s) comprised in the first resource pool intime domain.

In one embodiment, the second candidate time-domain-resource block isone of the Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block subset, and the second candidatetime-domain-resource block is not any of the Q3 first-typetime-domain-resource block(s) comprised in the first resource pool intime domain.

In one embodiment, the first time-unit format is used for indicating atransmission format of the second candidate time-domain-resource block.

In one embodiment, the second candidate time-domain-resource blockcomprises a positive integer number of time-domain-resource unit(s), andthe first time-unit format is used for indicating a transmission formatof any of the positive integer number of time-domain-resource unit(s)comprised in the second candidate time-domain-resource block.

In one embodiment, the second candidate time-domain-resource blockcomprises a positive integer number of time-domain-resource unit(s), anda first time unit is one of the positive integer number of time domainresource unit(s) comprised in the second candidate time-domain-resourceblock.

In one embodiment, the second candidate time-domain-resource block isthe same as a first time unit.

In one embodiment, the second candidate time-domain-resource block is afirst time unit.

In one embodiment, the first time-frequency-resource block is differentfrom the second candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block is the sameas the second candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block is orthogonalto the second candidate time-domain-resource block in time domain.

In one embodiment, the first time-frequency-resource block overlaps withthe second candidate time-domain-resource block in time domain.

Embodiment 7

Embodiment 7 illustrates a schematic diagram of relations among a firsttime window, Q first-type time-domain-resource blocks, a firsttime-domain-resource-block subset and a first resource pool according toone embodiment of the present disclosure, as shown in FIG. 7 . In FIG. 7, each solid small box represents one of the Q first-typetime-domain-resource blocks in the present disclosure; a dotted boxrepresents the first time-domain-resource-block subset in the presentdisclosure; a heavy-line box filled with slashes represents a first-typetime-domain-resource block among the first resource pool in the presentdisclosure.

In Embodiment 7, a first time window comprises Q first-typetime-domain-resource blocks, Q being a positive integer greater than 1;the first time-domain-resource-block subset comprises Q1 first-typetime-domain-resource block(s), and any of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource block is one of Q first-type time-domain-resourceblocks, Q1 being a positive integer not greater than the Q; the firstresource pool comprises Q3 first-type time-domain-resource block(s) intime domain, any of the Q3 first-type time-domain-resource block(s)comprised in the first resource pool in time domain is one of the Q3first-type time-domain-resource block(s) comprised in the firsttime-domain-resource-block subset, Q3 being a positive integer notgreater than the Q1.

In one embodiment, the Q1 is greater than 1, and the Q3 is equal to 1.

In one embodiment, the Q1 is equal to 1, and the Q3 is equal to 1.

In one embodiment, the Q1 is greater than the Q3, and the Q3 is greaterthan 1.

In one embodiment, the Q1 is equal to the Q3, and the Q3 is greater than1.

In one embodiment, the first time window comprises Q first-typetime-domain-resource blocks, and any of the Q first-typetime-domain-resource blocks comprises a positive integer number oftime-domain-resource unit(s).

In one embodiment, the first time window comprises a positive integernumber of radio frame(s).

In one embodiment, the first time window comprises a positive integernumber of slot(s).

In one embodiment, the first time window comprises 10 radio frames.

In one embodiment, the first time window comprises 20 slots.

In one embodiment, the first time window comprises 40 slots.

In one embodiment, a number of slots comprised in the first time windowis related to a subcarrier spacing of subcarriers in a frequency-domainresource unit corresponding to any of the Q first-typetime-domain-resource blocks.

In one embodiment, the Q first-type time-domain-resource blocks comprisethe first time-domain-resource-block subset, and any first-typetime-domain-resource block among the first time-domain-resource-blocksubset comprises a positive integer number of time-domain-resourceunit(s).

In one embodiment, one of the Q first-type time-domain-resource blocksis a subframe.

In one embodiment, one of the Q first-type time-domain-resource blocksis a slot.

In one embodiment, the Q first-type time-domain-resource blocks arerespectively Q subframes.

In one embodiment, the Q first-type time-domain-resource blocks arerespectively Q slots.

In one embodiment, the first time-domain-resource-block subset comprisesa time-domain-resource unit occupied by the first resource pool in timedomain, and any of the Q3 first-type time-domain-resource block(s)comprised in the first resource pool in time domain comprises a positiveinteger number of time-domain-resource unit(s).

In one embodiment, one of the Q1 first-type time-domain-resourceblock(s) comprised in the first time-domain-resource-block subset is asubframe.

In one embodiment, one of the Q1 first-type time-domain-resourceblock(s) comprised in the first time-domain-resource-block subset is aslot.

In one embodiment, the Q1 first-type time domain resource block(s)comprised in the first time-domain-resource-block subset is(are)respectively Q1 subframe(s).

In one embodiment, the Q1 first-type time domain resource block(s)comprised in the first time-domain-resource-block subset is(are)respectively Q1 slot(s).

In one embodiment, the Q1 first-type time domain resource blockscomprised in the first time-domain-resource-block subset arenon-consecutive in time domain.

In one embodiment, at least two adjacent first-type time-domain-resourceblocks among the Q1 first-type time-domain-resource blocks comprised inthe first time-domain-resource-block subset are non-consecutive in timedomain.

In one embodiment, the Q1 first-type time domain resource blockscomprised in the first time-domain-resource-block subset are consecutivein time domain.

In one embodiment, the first time domain resource block subset does notcomprise a downlink slot.

In one embodiment, the first time domain resource block subset does notcomprise a downlink subframe.

In one embodiment, the first time-domain-resource-block subset does notcomprise a slot used for transmitting a synchronization signal.

In one embodiment, the first time-domain-resource-block subset does notcomprise a slot used for transmitting a broadcast signal.

In one embodiment, the first time-domain-resource-block subset does notcomprise a slot used for transmitting a Sidelink SynchronizationSignal/Physical Sidelink Broadcast Channel block (SLSS/PSBCH).

In one embodiment, the first time-domain-resource-block subset does notcomprise a slot used for transmitting a Physical Random Access Channel(PRACH).

In one embodiment, the first time-domain-resource-block subset does notcomprise a slot used for transmitting a Physical Downlink ControlChannel (PDCCH).

In one embodiment, the first resource pool is used for sidelinktransmissions.

In one embodiment, the first resource pool is used for V2X.

In one embodiment, the first resource pool is configured.

In one embodiment, the first resource pool is configured by ahigher-layer signaling.

In one embodiment, the first resource pool is pre-configured.

In one embodiment, the first resource pool is configured by a basestation.

In one embodiment, the first resource pool is determined based on thesecond information.

In one embodiment, the first resource pool is determined based on thefirst bitmap.

In one embodiment, the first resource pool is determined by the firstnode based on the second information.

In one embodiment, the first time unit is used for determining the firstresource pool.

In one embodiment, the first time unit and the second information arejointly used for determining the first resource pool.

In one embodiment, the first time unit and the first bitmap are jointlyused for determining the first resource pool.

Embodiment 8

Embodiment 8 illustrates a schematic diagram of a relation between afirst time unit and a first time-unit format according to one embodimentof the present disclosure, as shown in FIG. 8 . In FIG. 8 , each solidbig box represents a multicarrier symbol comprised in a first time unit,and a solid big box in a dotted-line box represents a first symbol inthe present disclosure; each solid small box represents a symbol typecomprised in the first time-unit format, a solid small box filled withslashes in the first time-unit format represents a first-type symbol inthe present disclosure, a solid small box filled with cross lines in thefirst time-unit format represents a second-type symbol in the presentdisclosure, and a solid small box in a dotted box represents a symboltype corresponding to the first symbol in the first time-unit format.

In Embodiment 8, a first time unit is any of the Q first-typetime-domain-resource blocks, the first time unit comprising Tmulticarrier symbol(s), T being a positive integer; a first symbol isone of the T multicarrier symbol(s) comprised in the first time unit; afirst time-unit format comprises T symbol type(s), any of the T symboltype(s) being one of a first-type symbol or a second-type symbol; and afirst time-unit format is used for indicating a symbol type of the firstsymbol.

In one embodiment, the T symbol types are sequentially arranged in thefirst time-unit format.

In one embodiment, the first time-unit format is used for indicating atransmission format of a first time unit.

In one embodiment, the first time unit comprises a positive integernumber of slot(s).

In one embodiment, the first time unit comprises a slot.

In one embodiment, the first time unit comprises a positive integernumber of mini-slot(s).

In one embodiment, the first time unit comprises a mini-slot.

In one embodiment, the first time unit comprises a positive integernumber of short-slot(s).

In one embodiment, the first time unit comprises a short-slot.

In one embodiment, the first time unit comprises a positive integernumber of subframe(s).

In one embodiment, the first time unit comprises a positive integernumber of half-frame(s).

In one embodiment, the first time unit comprises a positive integernumber of radio frame(s).

In one embodiment, the first time unit comprises a positive integernumber of multicarrier symbol(s).

In one embodiment, the first time unit comprises 14 multicarriersymbols.

In one embodiment, the first time unit comprises 1 multicarrier symbol.

In one embodiment, the first time-unit format comprises the first-typesymbol.

In one embodiment, the first time-unit format comprises the second-typesymbol.

In one embodiment, the first time-unit format comprises the first-typesymbol and the second-type symbol.

In one embodiment, the first time-unit format only comprises thefirst-type symbol.

In one embodiment, the first time-unit format only comprises thesecond-type symbol.

In one embodiment, the first time-unit format only comprises thefirst-type symbol and the second-type symbol.

In one embodiment, the first time-unit format comprises a symbol typeother than the first-type symbol and the second-type symbol.

In one embodiment, at least one of the T symbol type(s) comprised in thefirst time-unit format is the first-type symbol.

In one embodiment, at least one of the T symbol type(s) comprised in thefirst time-unit format is the second-type symbol.

In one embodiment, all of the T symbol type(s) comprised in the firsttime-unit format is(are) the first-type symbol(s).

In one embodiment, all of the T symbol type(s) comprised in the firsttime-unit format is(are) the second-type symbol(s).

In one embodiment, the first time-unit format comprises a third-typesymbol.

In one embodiment, the first time-unit format comprises the first-typesymbol and the third-type symbol.

In one embodiment, the first time-unit format comprises the second-typesymbol and the third-type symbol.

In one embodiment, at least one of the T symbol type(s) comprised in thefirst time-unit format is the third-type symbol.

In one embodiment, all of the T symbol type(s) comprised in the firsttime-unit format is(are) the third-type symbol(s).

In one embodiment, at least one of the T symbol types comprised in thefirst time-unit format is the first-type symbol, and at least one of theT symbol types comprised in the first time-unit format is thesecond-type symbol.

In one embodiment, at least one of the T symbol types comprised in thefirst time-unit format is the first-type symbol, and at least one of theT symbol types comprised in the first time-unit format is the third-typesymbol.

In one embodiment, at least one of the T symbol types comprised in thefirst time-unit format is the second-type symbol, and at least one ofthe T symbol types comprised in the first time-unit format is thethird-type symbol.

In one embodiment, at least one of the T symbol types comprised in thefirst time-unit format is the first-type symbol, at least one of the Tsymbol types comprised in the first time-unit format is the second-typesymbol, and at least one of the T symbol types comprised in the firsttime-unit format is the third-type symbol.

In one embodiment, the first time-unit format is used for indicating thefirst-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating thesecond-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating thethird-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating thefirst-type symbol and the second-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating thefirst-type symbol, the second-type symbol and the third-type symbol inthe first time unit.

In one embodiment, the first time-unit format is used for indicating adistribution of the first-type symbol and the second-type symbol in thefirst time unit.

In one embodiment, the first time-unit format is used for indicating aposition of the first-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating aposition of the second-type symbol in the first time unit.

In one embodiment, the first time-unit format is used for indicating aposition of the third-type symbol in the first time unit.

In one embodiment, the first time-unit format indicates a position ofthe first-type symbol in the first time unit and a position of thesecond-type symbol in the first time unit.

In one embodiment, the first time-unit format indicates a position ofthe first-type symbol in the first time unit, a position of thesecond-type symbol in the first time unit, and a position of thethird-type symbol in the first time unit.

In one embodiment, the first time-unit format indicates a number of thefirst-type symbols in the first time unit.

In one embodiment, the first time-unit format indicates a number of thesecond-type symbols in the first time unit.

In one embodiment, the first time-unit format indicates a number of thethird-type symbols in the first time unit.

In one embodiment, the first time-unit format indicates a number of thefirst-type symbols in the first time unit and a number of thesecond-type symbols in the first time unit.

In one embodiment, the first time-unit format indicates a number of thefirst-type symbols in the first time unit, a number of the second-typesymbols in the first time unit, and a number of the third-type symbolsin the first time unit.

In one embodiment, the first time-unit format comprises a slot format.

In one embodiment, a definition of the slot format refers to 3GPPTS38.213, chapter 11.1.

In one embodiment, the first time-unit format comprises a UL-DL-Pattern.

In one embodiment, a definition of the UL-DL-Pattern refers to thedescription of TDD-UL-DL-Pattern in 3GPP TS38.331, chapter 6. 3. 2.

In one embodiment, the first time-unit format is a field in the firstinformation.

In one embodiment, the first time-unit format corresponds to a positiveinteger number of bit(s) in the first information.

In one embodiment, the first time-unit format is a field in a dynamicsignaling.

In one embodiment, the first time-unit format is a field in SCI.

In one embodiment, the first time-unit format is a field in asemi-persistent signaling.

In one embodiment, the first time-unit format is a field in an RRC IE.

In one embodiment, the first time-unit format indicates a type of anymulticarrier symbol in the first time unit.

In one embodiment, the first time-unit format indicates whether anymulticarrier symbol in the first time unit is a first-type symbol.

In one embodiment, the first time-unit format indicates whether anymulticarrier symbol in the first time unit is a second-type symbol.

In one embodiment, the first time-unit format indicates whether anymulticarrier symbol in the first time unit is a third-type symbol.

In one embodiment, the first symbol is one of the positive integernumber of multicarrier symbol(s) comprised in the first time unit.

In one embodiment, the first time unit is one of the Q first-typetime-domain-resource blocks comprised in the first time window.

In one embodiment, the first time-unit format indicates whether thefirst symbol is the first-type symbol.

In one embodiment, the first time-unit format indicates whether thefirst symbol is the second-type symbol.

In one embodiment, the first time-unit format indicates whether thefirst symbol is the third-type symbol.

In one embodiment, any of the positive integer number of multicarriersymbol(s) comprised in the first time unit corresponds to one of thefirst-type symbol or the second-type symbol in the first time-unitformat.

In one embodiment, any of the positive integer number of multicarriersymbol(s) comprised in the first time unit corresponds to one among thefirst-type symbol, the second-type symbol and the third-type symbol inthe first time-unit format.

In one embodiment, at least one of the positive integer number ofmulticarrier symbol(s) comprised in the first time unit corresponds tothe first-type symbol in the first time-unit format.

In one embodiment, at least one of the positive integer number ofmulticarrier symbol(s) comprised in the first time unit corresponds tothe second-type symbol in the first time-unit format.

In one embodiment, at least one of the positive integer number ofmulticarrier symbol(s) comprised in the first time unit corresponds tothe third-type symbol in the first time-unit format.

In one embodiment, all of the positive integer number of multicarriersymbol(s) comprised in the first time unit correspond(s) to thefirst-type symbol in the first time-unit format.

In one embodiment, all of the positive integer number of multicarriersymbol(s) comprised in the first time unit correspond(s) to thesecond-type symbol in the first time-unit format.

In one embodiment, all of the positive integer number of multicarriersymbol(s) comprised in the first time unit correspond(s) to thethird-type symbol in the first time-unit format.

In one embodiment, the first symbol in the first time unit correspondsto the first-type symbol in the first time-unit format, the first symbolbelonging to the first-type symbol.

In one embodiment, the first symbol in the first time unit correspondsto the second-type symbol in the first time-unit format, the firstsymbol belonging to the second-type symbol.

In one embodiment, the first symbol in the first time unit correspondsto the third-type symbol in the first time-unit format, the first symbolbelonging to the third-type symbol.

In one embodiment, the first-type symbol comprises an uplink symbol.

In one embodiment, the first-type symbol comprises a flexible symbol.

In one embodiment, the second-type symbol comprises a downlink symbol.

In one embodiment, the second-type symbol comprises a flexible symbol.

In one embodiment, the first-type symbol comprises a flexible symbol,and the second-type symbol does not comprise a flexible symbol.

In one embodiment, the first-type symbol does not comprise a flexiblesymbol, and the second-type symbol comprises a flexible symbol.

In one embodiment, the first-type symbol comprises an uplink symbol, andthe first-type symbol does not comprise a flexible symbol.

In one embodiment, the second-type symbol comprises a downlink symbol,and the second-type symbol does not comprise a flexible symbol.

In one embodiment, the third-type symbol comprises a flexible symbol.

In one embodiment, the third-type symbol only comprises a flexiblesymbol.

In one embodiment, the third-type symbol comprises a flexible symbol,the third-type symbol does not comprise an uplink symbol, and thethird-type symbol does not comprise a downlink symbol.

In one embodiment, a definition of the uplink symbol refers to 3GPPTS38. 213, chapter 11.1.

In one embodiment, a definition of the downlink symbol refers to 3GPPTS38. 213, chapter 11.1.

In one embodiment, a definition of the flexible symbol refers to 3GPPTS38. 213, chapter 11.1.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is used for uplink transmissions.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is used for sidelink transmissions.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol can be used for both uplink transmissions andsidelink transmissions.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is used for uplink transmissions, or the onemulticarrier symbol is used for sidelink transmissions.

In one embodiment, when the first symbol belongs to the second-typesymbol, the first symbol is used for downlink transmissions.

In one embodiment, when the first symbol belongs to the second-typesymbol, the first symbol is not used for sidelink transmissions.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is used for a PC5 interface.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is used for a Uu interface, or, the firstsymbol is used for a PC5 interface.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol can be used for both a Uu interface and a PC5interface.

In one embodiment, when the first symbol belongs to the second-typesymbol, the first symbol is used for a Uu interface.

In one embodiment, when the first symbol belongs to the second-typesymbol, the first symbol is only used for a Uu interface.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is a Discrete Fourier Transform SpreadOrthogonal Frequency Division Multiplexing (DFT-S-OFDM) symbol.

In one embodiment, when the first symbol belongs to the first-typesymbol, the first symbol is a Single-Carrier Frequency Division MultipleAccess (SC-FDMA) symbol.

In one embodiment, when the first symbol belongs to the second-typesymbol, the first symbol is an Orthogonal Frequency DivisionMultiplexing (OFDM) symbol.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is a FBMC symbol.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is used for uplink transmissions.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is used for sidelink transmissions.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol can be used for both uplink transmissions and sidelinktransmissions.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is used for uplink transmissions, or, the one multicarriersymbol is used for sidelink transmissions.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is used for downlink transmissions.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is not used for sidelink transmissions.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is used for a PC5 interface.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is used for a Uu interface, or, the first symbol is usedfor a PC5 interface.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol can be used for both a Uu interface and a PC5 interface.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is used for a Uu interface.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is only used for a Uu interface.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is a DFT-S-OFDM symbol.

In one embodiment, when the first symbol is the first-type symbol, thefirst symbol is a SC-FDMA symbol.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is an OFDM symbol.

In one embodiment, when the first symbol is the second-type symbol, thefirst symbol is a FBMC symbol.

Embodiment 9

Embodiment 9 illustrates a schematic diagram of relations among a firsttime-unit format, a time-unit-format subset, and a time-unit-format listaccording to one embodiment of the present disclosure, as shown in FIG.9 . In FIG. 9 , each row represents a first-type time-unit format in atime-unit-format list, and each first-type time-unit format comprises Tsymbol(s); in case A, a square filled with “U” represents a first-typesymbol in the present disclosure, and a square filled with “D” or “F”represents a second-type symbol in the present disclosure; in case B, asquare filled with “U” or “F” represents a first-type symbol in thepresent disclosure, and a square filled with “D” represents asecond-type symbol in the present disclosure; a first-type time-unitformat in a dotted big box is the first time-unit format in the presentdisclosure.

In Embodiment 9, a time-unit-format list comprises a positive integernumber of first-type time-unit format(s), and the first time-unit formatis one of the positive integer number of first-type time-unit format(s)comprised in the time-unit-format list; a time-unit-format subsetcomprises a positive integer number of first-type time-unit format(s)among the time-unit-format list.

In one embodiment, the time-unit-format list comprises a positiveinteger number of first-type time-unit format(s), any of the positiveinteger number of first-type time-unit format(s) comprises T symbol(s),T being a positive integer.

In one embodiment, the T is equal to 14.

In one embodiment, the T is equal to 7.

In one embodiment, the time-unit-format list comprises 56 first-typetime-unit formats.

In one embodiment, the time-unit-format list comprises 57 first-typetime-unit formats.

In one embodiment, the time-unit-format list is predefined.

In one embodiment, the time-unit-format list is preconfigured.

In one embodiment, the time-unit-format list is configured by ahigher-layer signaling.

In one embodiment, the time-unit-format list is referred based on ahigher-layer signaling.

In one embodiment, a definition of the time-unit-format list refers to3GPP TS38. 213, chapter 11.1.1, form 11.1.1-1.

In one embodiment, the time-unit-format list comprises a positiveinteger number of first-type time-unit format(s) that respectivelycorrespond(s) to a positive integer number of first-type formatindex(es), and a first format index is one of the positive integernumber of first-type format index(es), the first format indexcorresponding to the first time-unit format.

In one embodiment, the positive integer number of first-type formatindexes are positive integer number of non-negative integers arranged inorder.

In one embodiment, the positive integer number of first-type index(es)is(are) respectively used to indicate the positive integer number offirst-type time-unit format(s) comprised in the time-unit-format list.

In one embodiment, any of the positive integer number of first-typeformat index(es) is used for indicating one of the positive integernumber of first-type time unit(s) comprised in the time-unit-formatlist.

In one embodiment, the first format index is used for indicating a firsttime-unit format.

In one embodiment, the first format index is used for indicating thefirst time-unit format out of the time-unit-format list.

In one embodiment, the time-unit-format list comprises M first-typetime-unit format(s), and the time-unit-format subset comprises M1first-type time-unit format(s); any of the M1 first-type time-unitformat(s) comprised in the time-unit-format subset is one of the Mfirst-type time-unit format(s) comprised in the time-unit-format list, Mbeing a positive integer, M1 being a positive integer not greater thanthe M.

In one embodiment, a first target time unit is any of the M1 first-typetime-unit format(s) comprised in the time-unit-format subset.

In one embodiment, a first target time-unit format comprises a positiveinteger number of multicarrier symbol(s), and any of X0 multicarriersymbol(s) is one of the positive integer number of multicarriersymbol(s) comprised in the first target time-domain unit format, the X0multicarrier symbol(s) all being first type symbol(s), X0 being anon-negative integer not greater than the T.

In one embodiment, the X0 multicarrier symbols are discrete in the firsttarget time-unit format.

In one embodiment, the X0 multicarrier symbols are consecutive in thefirst target time-unit format.

In one embodiment, the X0 is equal to 0.

In one embodiment, the X0 is equal to 1.

In one embodiment, the X0 is equal to 2.

In one embodiment, the X0 is less than a first threshold.

In one embodiment, a second target time unit is any of the M1 first-typetime-unit format(s) comprised in the time-unit-format subset.

In one embodiment, a second target time-unit format comprises a positiveinteger number of multicarrier symbol(s), a second target time-unitformat comprises a positive integer number of multicarrier symbol(s)respectively corresponding to a positive integer number of symbolindex(es); a second target symbol is one of the positive integer numberof multicarrier symbol(s) comprised in the second target time-unitformat, and a second symbol index is one of the positive integer numberof symbol index(es) corresponding to the second target symbol.

In one embodiment, the positive integer number of symbol indexes are apositive integer number of non-negative integers arranged in order.

In one embodiment, the second target symbol is not the first-typesymbol.

In one embodiment, the second target symbol is the second-type symbol.

In one embodiment, the second target symbol is the third-type symbol.

In one embodiment, the second symbol index is equal to a first givensymbol index.

In one embodiment, the first given symbol index is 0.

In one embodiment, the first given symbol index is 1.

In one embodiment, the first time-unit format is used for determiningwhether the first candidate time-domain-resource block belongs to thefirst time-domain-resource-block subset.

In one embodiment, when the first time-unit format belongs to thetime-unit-format subset, the first candidate time-domain-resource blockdoes not belong to the first time-domain-resource-block subset.

In one embodiment, when the first time-unit format does not belong tothe time-unit-format subset, the first candidate time-domain-resourceblock belongs to the first time-domain-resource-block subset.

In one embodiment, when the first time-unit format does not belong tothe time-unit-format subset, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block subset.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the first candidate time-domain-resource block doesnot belong to the first time-domain-resource-block subset.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the first candidate time-domain-resource block belongsto the first time-domain-resource-block subset.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the first candidate time-domain-resource block doesnot belong to the first time-domain-resource-block subset.

In one embodiment, when the first time-unit format is one of M1first-type time-unit format(s) comprised in the time-unit-format subset,the first candidate time-domain-resource block does not belong to thefirst time-domain-resource-block sub set.

In one embodiment, when the first time-unit format is not any of M1first-type time-unit format(s) comprised in the time-unit-format subset,the first candidate time-domain-resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, when the first time-unit format is not any of M1first-type time-unit format(s) comprised in the time-unit-format subset,the first candidate time-domain-resource block does not belong to thefirst time-domain-resource-block subset.

In one embodiment, the first time-unit format is used for determiningwhether the second candidate time-domain-resource block belongs to thefirst resource pool.

In one embodiment, when the first time-unit format belongs to thetime-unit-format subset, the second candidate time-domain-resource blockdoes not belong to the first resource pool.

In one embodiment, when the first time-unit format does not belong tothe time-unit-format subset, the second candidate time-domain-resourceblock belongs to the first resource pool.

In one embodiment, when the first time-unit format does not belong tothe time-unit-format subset, the second candidate time-domain-resourceblock does not belong to the first resource pool.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the second candidate time-domain-resource block doesnot belong to the first resource pool.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the second candidate time-domain-resource blockbelongs to the first resource pool.

In one embodiment, when the time-unit-format subset comprises the firsttime-unit format, the second candidate time-domain-resource block doesnot belong to the first resource pool.

In one embodiment, when the first time-unit format is one of M1first-type time-unit format(s) comprised in the time-unit-format subset,the second candidate time-domain-resource block does not belong to thefirst resource pool.

In one embodiment, when the first time-unit format is not any of M1first-type time-unit format(s) comprised in the time-unit-format subset,the second candidate time-domain-resource block belongs to the firstresource pool.

In one embodiment, when the first time-unit format is not any of M1first-type time-unit format(s) comprised in the time-unit-format subset,the second candidate time-domain-resource block does not belong to thefirst resource pool.

Embodiment 10

Embodiment 10 illustrates a schematic diagram of a relation between afirst candidate time-domain-resource block and X1 first-type symbol(s)according to one embodiment of the present disclosure, as shown in FIG.10 . In FIG. 10 , each h solid box represents one of a positive integernumber of multicarrier symbol(s) comprised in a first candidatetime-domain-resource block; a solid box filled with slashes representsthe first-type symbol in the present disclosure.

In Embodiment 10, the first candidate time-domain-resource block in thepresent disclosure comprises a positive integer number of multicarriersymbol(s), and X1 multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block is(are) a first-type symbol(first-type symbols).

In one embodiment, any of the X1 first-type symbol(s) is one of thepositive integer number of multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block.

In one embodiment, the X1 first-type symbols are consecutive in thefirst candidate time-domain-resource block.

In one embodiment, the X1 first-type symbols are discrete in the firstcandidate time-domain-resource block.

In one embodiment, at least two adjacent first-type symbols of the X1first-type symbols are non-consecutive in the first candidatetime-domain-resource block.

In one embodiment, the second candidate time-domain-resource block inthe present disclosure comprises a positive integer number ofmulticarrier symbol(s), and X2 multicarrier symbol(s) comprised in thesecond candidate time-domain-resource block is(are) a first-type symbol(first-type symbols).

In one embodiment, any of the X2 first-type symbol(s) is one of thepositive integer number of multicarrier symbol(s) comprised in thesecond candidate time-domain-resource block.

In one embodiment, the X2 first-type symbols are consecutive in thesecond candidate time-domain-resource block.

In one embodiment, the X2 first-type symbols are discrete in the secondcandidate time-domain-resource block.

In one embodiment, at least two adjacent first-type symbols among the X2first-type symbols are non-consecutive in the second candidatetime-domain-resource block.

Embodiment 11

Embodiment 11 illustrates a flowchart of determining whether a firstcandidate time-domain-resource block belongs to a firsttime-domain-resource-block subset according to one embodiment of thepresent disclosure, as shown in FIG. 11 .

In Embodiment 11, X1 is determined whether it is less than a firstthreshold in step S1101; when the result of determining whether X1 isless than a first threshold is “Yes”, step S1102 is performed todetermine that a first candidate time-domain-resource block does notbelong to a first time-domain-resource-block subset; when the result ofdetermining whether X1 is less than a first threshold is “No”, stepS1103 is performed to determine that a first candidatetime-domain-resource block belongs to a first time-domain-resource-blocksubset.

In one embodiment, the first threshold is a positive integer.

In one embodiment, the first threshold is 1.

In one embodiment, the first threshold is 3.

In one embodiment, the first threshold is 7.

In one embodiment, the first threshold is 14.

In one embodiment, the first time-unit format is used for determiningthe X1.

In one embodiment, when the X1 is less than the first threshold, thefirst candidate resource block does not belong to the firsttime-domain-resource-block sub set.

In one embodiment, when the X1 is not less than the first threshold, thefirst candidate resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is equal to the first threshold, thefirst candidate resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is greater than the first threshold, thefirst candidate resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is less than the first threshold, thefirst candidate resource block is not any of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is not less than the first threshold, thefirst candidate resource block is one of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is not less than the first threshold, thefirst candidate resource block is one of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is equal to the first threshold, thefirst candidate resource block is one of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

In one embodiment, when the X1 is greater than the first threshold, thefirst candidate resource block is one of the Q1 first-typetime-domain-resource block(s) comprised in the firsttime-domain-resource-block subset.

Embodiment 12

Embodiment 12 illustrates a flowchart of determining whether a firstcandidate time-domain-resource block belongs to a first resource poolaccording to one embodiment of the present disclosure, as shown in FIG.12 .

In Embodiment 12, whether a first candidate time-domain-resource blockbelongs to a first time-domain resource subset is determined in stepS1201; when the result of determining whether a first candidatetime-domain-resource block belongs to a first time-domain resourcesubset is “Yes”, the step S1202 is performed to determine whether afirst bit is a first value; when the result of determining whether afirst bit is a first value is “Yes”, step S1203 is performed todetermine that a first candidate time-domain-resource block belongs to afirst resource pool. When the result of determining whether a firstcandidate time-domain-resource block belongs to a first time-domainresource subset is “No”, step S1204 is performed to determine that afirst candidate time-domain-resource block does not belong to a firstresource pool; when the result of determining whether a first bit is afirst value is “No”, step S1204 is performed to determine that a firstcandidate time-domain-resource block does not belong to a first resourcepool.

In one embodiment, the phrase that the first candidatetime-domain-resource block belongs to the first resource pool refers tothat the first candidate time-domain-resource block is one of the Q3first-type time-domain-resource block(s) comprised in the first resourcepool in time domain.

In one embodiment, the phrase that the first candidatetime-domain-resource block does not belong to the first resource poolrefers to that the first candidate time-domain-resource block is not anyof the Q3 first-type time-domain-resource block(s) comprised in thefirst resource pool in time domain.

In one embodiment, the second information comprises the first bitmap,and the first bitmap comprises B bit(s), B being a positive integer.

In one embodiment, the B bit(s) in the first bitmap correspond(s) to theQ1 first-type time-domain-resource block(s) in the firsttime-domain-resource-block sub set.

In one embodiment, any of the B bit(s) comprised in the first bitmapcorresponds to at least one first-type time-domain-resource block amongthe first time-domain-resource-block subset.

In one embodiment, the B bit(s) in the first bitmap respectivelycorrespond(s) to the Q1 first-type time-domain-resource block(s) amongthe first time-domain-resource-block subset, the Q1 being equal to theB.

In one embodiment, the first time-domain-resource-block subset comprisesB first-type time-domain-resource block group(s), and any of the Bfirst-type time-domain-resource block group(s) comprises a positiveinteger number of first-type time-domain-resource block(s).

In one embodiment, any of the Q1 first-type time-domain-resourceblock(s) comprised in the first time-domain-resource-block subsetbelongs to one of the B first-type time-domain-resource block group(s).

In one embodiment, the B bit(s) in the first bitmap respectivelycorrespond(s) to the B first-type time-domain-resource block(s) amongthe first time-domain-resource-block subset.

In one embodiment, a first target time-domain-resource block is one ofthe Q1 first-type time-domain-resource block(s) comprised in the firsttime-domain-resource-block subset, and a first bit is one of the Bbit(s) comprised in the first bitmap corresponding to the first targettime-domain-resource block.

In one embodiment, when a value of the first bit is a first value, thefirst target time-domain-resource block belongs to the first resourcepool.

In one embodiment, when a value of the first bit is a second value, thefirst target time-domain-resource block does not belong to the firstresource pool.

In one embodiment, the phrase that the first target time-domain-resourceblock belongs to the first resource pool refers to that the first targettime-domain-resource block is one of the Q3 first-typetime-domain-resource block(s) comprised in the first resource block intime domain.

In one embodiment, the phrase that the first target time-domain-resourceblock does not belong to the first resource pool refers to that thefirst target time-domain-resource block is not any of the Q3 first-typetime-domain-resource block(s) comprised in the first resource block intime domain.

In one embodiment, a first target time-domain-resource block group isone of the B first-type time-domain-resource block group(s) comprised inthe first time-domain-resource-block subset, a first bit is one of the Bbit(s) comprised in the first bitmap corresponding to the first targettime-domain-resource block group, and the first targettime-domain-resource block group comprises a positive integer number offirst-type time-domain-resource block(s).

In one embodiment, when a value of the first bit is a first value, anyfirst-type time-domain-resource block among the first targettime-domain-resource block group belongs to the first resource pool.

In one embodiment, when a value of the first bit is a second value, anyfirst-type time-domain-resource block among the first targettime-domain-resource block group does not belong to the first resourcepool.

In one embodiment, the phrase that any first-type time-domain-resourceblock among the first target time-domain-resource block group belongs tothe first resource pool refers to that any first-type time-domainresource among the first target time-domain-resource block group is oneof the Q3 first-type time-domain-resource block(s) comprised in thefirst resource block in time domain.

In one embodiment, the phrase that any first-type time-domain-resourceblock among the first target time-domain-resource block group does notbelong to the first resource pool refers to that any first-typetime-domain resource of the first target time-domain-resource blockgroup is not any of the Q3 first-type time-domain-resource block(s)comprised in the first resource block in time domain.

In one embodiment, the first value is 1 and the second value is 0.

In one embodiment, the first value is 1 and the second value is −1.

In one embodiment, the first value is a Boolean value “TRUE”.

In one embodiment, the second value is a Boolean value “FALSE”.

Embodiment 13

Embodiment 13 illustrates a flowchart of determining whether a secondcandidate time-domain-resource block belongs to a first resource poolaccording to one embodiment of the present disclosure, as shown in FIG.13 .

In Embodiment 13, whether a second bit is a first value is determined instep S1301; when the result of determining whether a second bit is afirst value is “Yes”, step S1302 is performed to determine whether X2 isnot less than a first threshold; when the result of determining whetherX2 is not less than a first threshold is “Yes”, step S1303 is performedto determine that a second candidate time-domain-resource block belongsto a first resource pool; when the result of determining whether asecond bit is a first value is “No”, step S1304 is performed todetermine that a second candidate time-domain-resource block does notbelong to a first resource pool; when the result of determining whetherX2 is not less than a first threshold is “No”, step S1304 is performedto determine that a second candidate time-domain-resource block does notbelong to a first resource pool;

In one embodiment, the phrase that the second candidatetime-domain-resource block belongs to the first resource pool refers tothat the second candidate time-domain-resource block is one of the Q3first-type time-domain-resource block(s) comprised in the first resourcepool in time domain.

In one embodiment, the phrase that the second candidatetime-domain-resource block does not belong to the first resource poolrefers to that the first candidate time-domain-resource block is not anyof the Q3 first-type time-domain-resource block(s) comprised in thefirst resource pool in time domain.

In one embodiment, a second candidate time-domain-resource block is oneof the Q1 first-type time-domain-resource block(s) comprised in thefirst time-domain-resource-block subset, and a second bit is one of theB bit(s) comprised in the first bitmap corresponding to the secondcandidate time-domain-resource block.

In one embodiment, when a value of the second bit is a first value andthe X2 is not less than the first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, when a value of the second bit is a first value andthe X2 is equal to the first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, when a value of the second bit is a first value andthe X2 is greater than the first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, when a value of the second bit is a second value, thesecond candidate time-domain-resource block does not belong to the firstresource pool.

In one embodiment, when a value of the second bit is a second value andthe X2 is not less than the first threshold, the second candidatetime-domain-resource block does not belong to the first resource pool.

In one embodiment, when a value of the second bit is a second value andthe X2 is less than the first threshold, the second candidatetime-domain-resource block does not belong to the first resource pool.

In one embodiment, when the X2 is less than the first threshold, thesecond candidate time-domain-resource block does not belong to the firstresource pool.

In one embodiment, when a value of the second bit is a first value andthe X2 is less than the first threshold, the second candidatetime-domain-resource block does not belong to the first resource pool.

In one embodiment, a second target time-domain-resource block group isone of the B first-type time-domain-resource block group(s) comprised inthe first time-domain-resource-block subset, a second bit is one of theB bit(s) comprised in the first bitmap corresponding to the secondtarget time-domain-resource block group, the second targettime-domain-resource block group comprises a positive integer number offirst-type time-domain-resource block(s), and the second candidatetime-domain-resource block is a first-type time-domain-resource blockamong the second target time-domain-resource block group.

In one embodiment, when a value of the second bit is a second value, anyfirst-type time-domain-resource block among the second targettime-domain-resource block group does not belong to the first resourcepool.

Embodiment 14

Embodiment 14 illustrates a flowchart of determining whether a secondcandidate time-domain-resource block belongs to a first resource poolaccording to one embodiment of the present disclosure, as shown in FIG.14 .

In Embodiment 14, whether a second bit is a first value is determined instep S1401; when the result of determining whether a second bit is thefirst value is “Yes”, step S1402 is performed to determine whether afirst time-unit format does not belong to a time-unit-format subset;when the result of determining whether a first time-unit format does notbelong to a time-unit-format subset is “Yes”, step S1403 is performed todetermine that a second candidate time-domain-resource block belongs toa first resource pool; when the result of determining whether a secondbit is a first value is “No”, step S1404 is performed to determine thata second candidate time-domain-resource block does not belong to a firstresource pool; when the result of determining whether a first time-unitformat does not belong to a time-unit-format subset is “No”, step S1404is performed to determine that a second candidate time-domain-resourceblock does not belong to a first resource pool.

In one embodiment, when a value of the second bit is a first value andthe first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.

In one embodiment, when a value of the second bit is a first value andthe time-unit-format subset does not comprise the first time-unitformat, the second candidate time-domain-resource block belongs to thefirst resource pool.

In one embodiment, when a value of the second bit is a second value andthe first time-unit format belongs to the time-unit-format subset, thesecond candidate time-domain-resource block does not belong to the firstresource pool.

In one embodiment, when a value of the second bit is a second value andthe first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block does not belongto the first resource pool.

In one embodiment, when the first time-unit format belongs to thetime-unit-format subset, the second candidate time-domain-resource blockdoes not belong to the first resource pool.

In one embodiment, when a value of the second bit is a first value andthe first time-unit format belongs to the time-unit-format subset, thesecond candidate time-domain-resource block does not belong to the firstresource pool.

Embodiment 15

Embodiment 15 illustrates a schematic diagram of a time-frequencyresource unit according to one embodiment of the present disclosure, asshown in FIG. 15 . In FIG. 15 , a dotted small box represents a ResourceElement (RE), and a bold box represents a time-frequency resource unit.In FIG. 15 , a time-frequency resource unit occupies K subcarrier(s) infrequency domain, and L multicarrier symbol(s) in time domain, K and Lbeing positive integers. In FIG. 15 , t₁, t₂, . . . , t_(L) represent(s)the L symbol(s), and f₁, f₂, . . . , f_(K) represent(s) the Ksubcarrier(s).

In Embodiment 15, a time-frequency resource unit occupies the Ksubcarrier(s) in frequency domain and the L multicarrier symbol(s) intime domain, the K and the L being positive integers.

In one embodiment, the K is equal to 12.

In one embodiment, the K is equal to 72.

In one embodiment, the K is equal to 127.

In one embodiment, the K is equal to 240.

In one embodiment, the L is equal to 1.

In one embodiment, the L is equal to 2.

In one embodiment, the L is not greater than 14.

In one embodiment, any of the L multicarrier symbol(s) is an OFDMsymbol.

In one embodiment, any of the L multicarrier symbol(s) is a SC-FDMAsymbol.

In one embodiment, any of the L multicarrier symbol(s) is a DFT-S-OFDMsymbol.

In one embodiment, any of the L multicarrier symbol(s) is a FrequencyDivision Multiple Access (FDMA) symbol.

In one embodiment, any of the L multicarrier symbol(s) is a Filter BankMulticarrier (FBMC) symbol.

In one embodiment, any of the L multicarrier symbol(s) is an InterleavedFrequency Division Multiple Access (IFDMA) symbol.

In one embodiment, the time-domain-resource unit comprises a positiveinteger number of radio frame(s).

In one embodiment, the time-domain-resource unit comprises a positiveinteger number of subframe(s).

In one embodiment, the time-domain-resource unit comprises a positiveinteger number of slot(s).

In one embodiment, the time-domain-resource unit is a slot.

In one embodiment, the time-domain-resource unit comprises a positiveinteger number of multicarrier symbol(s).

In one embodiment, the frequency-domain resource unit comprises apositive integer number of carrier(s).

In one embodiment, the frequency-domain resource unit comprises apositive integer number of Bandwidth Part(s)(BWP).

In one embodiment, the frequency-domain resource unit is a BWP.

In one embodiment, the frequency-domain resource unit comprises apositive integer number of subchannel(s).

In one embodiment, the frequency-domain resource unit is a subchannel.

In one embodiment, any of the positive integer number of subchannel(s)comprises a positive integer number of Resource Block(s)(RB).

In one embodiment, the one subchannel comprises a positive integernumber of RB(s).

In one embodiment, any of the positive integer number of RB(s) comprisesa positive integer number of sub-carrier(s) in frequency domain.

In one embodiment, any of the positive integer number of RB(s) comprises12 sub-carrier(s) in frequency domain.

In one embodiment, the sub-channel comprises a positive integer numberof PRB(s).

In one embodiment, a number of PRB(s) comprised in the one subchannel isvariable.

In one embodiment, any of the positive integer number of PRB(s)comprises a positive integer number of sub-carrier(s) in frequencydomain.

In one embodiment, any of the positive integer number of PRB(s)comprises 12 subcarriers in frequency domain.

In one embodiment, the frequency-domain resource unit comprises apositive integer number of RB(s).

In one embodiment, the frequency-domain resource unit is an RB.

In one embodiment, the frequency-domain resource unit comprises apositive integer number of PRB(s).

In one embodiment, the frequency-domain resource unit is a PRB.

In one embodiment, the frequency-domain resource unit comprises apositive integer number of subcarrier(s).

In one embodiment, the frequency-domain resource unit is a subcarrier.

In one embodiment, the time-frequency resource unit comprises thetime-domain-resource unit.

In one embodiment, the time-frequency resource unit comprises thefrequency-domain resource unit.

In one embodiment, the time-frequency resource unit comprises thetime-domain-resource unit and the frequency-domain resource unit.

In one embodiment, the time-frequency resource unit comprises R RE(s), Rbeing a positive integer.

In one embodiment, the time-frequency resource unit consists of R RE(s),R being a positive integer.

In one embodiment, any of the R RE(s) occupies a multicarrier symbol intime domain and a subcarrier in frequency domain.

In one embodiment, the one subcarrier spacing is measured by Hertz (Hz).

In one embodiment, the one subcarrier spacing is measured by Kilohertz(kHz).

In one embodiment, the one subcarrier spacing is measured by Megahertz(MHz).

In one embodiment, a symbol length of the one multicarrier symbol ismeasured by sampling point.

In one embodiment, a symbol length of the one multicarrier symbol ismeasured by microsecond (μs).

In one embodiment, a symbol length of the one multicarrier symbol ismeasured by millisecond (ms).

In one embodiment, the one subcarrier spacing is at least one of 1.25khz, 2.5 KHz, 5 KHz, 15 KHz, 30 kHz, 60 KHZ, 120 kHz or 240 khz.

In one embodiment, the time-frequency resource unit comprises the Ksubcarrier(s) and the L multicarrier symbol(s), a product of the K andthe L being not less than the R.

In one embodiment, the time-frequency resource unit does not comprise anRE allocated to a Guard Period (GP).

In one embodiment, the time-frequency resource unit does not comprise anRE allocated to a Reference Signal (RS).

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of RB(s).

In one embodiment, the time-frequency resource unit belongs to an RB.

In one embodiment, the time-frequency resource unit is equal to an RB infrequency domain.

In one embodiment, the time-frequency resource unit comprises 6 RBs infrequency domain.

In one embodiment, the time-frequency resource unit comprises 20 RBs infrequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of PRB(s).

In one embodiment, the time-frequency resource unit belongs to a PRB.

In one embodiment, the time-frequency resource unit is equal to a PRB infrequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of Virtual Resource Block(s) (VRB).

In one embodiment, the time-frequency resource unit belongs to a VRB.

In one embodiment, the time-frequency resource unit is equal to a VRB infrequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of Physical Resource Block (PRB) pair(s)

In one embodiment, the time-frequency resource unit belongs to a PRBpair.

In one embodiment, the time-frequency resource unit is equal to a PRBpair in frequency domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of radio frame(s).

In one embodiment, the time-frequency resource unit belongs to a radioframe.

In one embodiment, the time-frequency resource unit is equal to a radioframe in time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of subframe(s).

In one embodiment, the time-frequency resource unit belongs to asubframe.

In one embodiment, the time-frequency resource unit is equal to asubframe in time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of slot(s).

In one embodiment, the time-frequency resource unit belongs to a slot.

In one embodiment, the time-frequency resource unit is equal to a slotin time domain.

In one embodiment, the time-frequency resource unit comprises a positiveinteger number of Symbol(s).

In one embodiment, the time-frequency resource unit belongs to a Symbol.

In one embodiment, the time-frequency resource unit is equal to a Symbolin time domain.

In one embodiment, the duration of the time-domain-resource unit in thepresent disclosure is equal to that of the time-frequency resource unitin time domain in the present disclosure.

In one embodiment, a number of subcarriers occupied by thefrequency-domain resource unit in the present disclosure is equal tothat of the time-frequency resource unit in frequency domain in thepresent disclosure.

Embodiment 16

Embodiment 16 illustrates a structural block diagram of a processingdevice used in a first node, as shown in FIG. 15 . In Embodiment 16, afirst node processing device 1600 mainly consists of a first receiver1601, a second receiver 1602 and a first transmitter 1603.

In one embodiment, the first receiver 1601 comprises at least one of anantenna 452, a transmitter/receiver 454, a multi-antenna receivingprocessor 458, a receiving processor 456, a controller/processor 459, amemory 460 or a data source 467 in FIG. 4 of the present disclosure.

In one embodiment, the second receiver 1602 comprises at least one of anantenna 452, a transmitter/receiver 454, a multi-antenna receivingprocessor 458, a receiving processor 456, a controller/processor 459, amemory 460 or a data source 467 in FIG. 4 of the present disclosure.

In one embodiment, the first transmitter 1603 comprises at least one ofan antenna 452, a transmitter/receiver 454, a multi-antenna transmittingprocessor 457, a transmitting processor 468, a controller/processor 459,a memory 460, or a data source 467 in FIG. 4 of the present disclosure.

In Embodiment 16, the first receiver 1601 receives first information,the first information being used to indicate a first time-unit format;the second receiver 1602 determines second information; the secondreceiver 1602 determines a first resource pool; herein, a first timewindow comprises Q first-type time-domain-resource blocks, the Q being apositive integer greater than 1; any of the Q first-typetime-domain-resource blocks comprises a positive integer number ofmulticarrier symbol(s); a first symbol is one of the positive integernumber of multicarrier symbol(s) comprised in any of the Q first-typetime-domain-resource blocks; the first time-unit format is used forindicating whether the first symbol is a first-type symbol; the secondinformation is used for indicating a positive integer number offirst-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset, the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool.

In one embodiment, the second receiver 1602 determines whether a firstcandidate time-domain-resource block belongs to the firsttime-domain-resource-block subset; the first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset.

In one embodiment, a time-unit-format list comprises a positive integernumber of first-type time-unit format(s), the first time-unit format isa first-type time-unit format among the time-unit-format list, and atime-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when thefirst time-unit format belongs to the time-unit-format subset, the firstcandidate time-domain-resource block does not belong to the firsttime-domain-resource-block subset.

In one embodiment, the first time-unit format is used for indicating X1multicarrier symbol(s) comprised in the first candidatetime-domain-resource block, the X1 multicarrier symbols all being thefirst-type symbols, the X1 being a non-negative integer; when the X1 isless than a first threshold, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block sub set.

In one embodiment, the second receiver 1602 determines whether the firstcandidate time-domain-resource block belongs to the first resource pool;the first candidate time-domain-resource block belongs to the firsttime-domain-resource-block subset; the second information comprises afirst bit, which corresponds to the first candidate time-domain-resourceblock and is used for determining whether the first candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, the second receiver 1602 determines whether a secondcandidate time-domain-resource block belongs to the first resource pool;the second candidate time-domain-resource block is a first-typetime-domain-resource block among the first time-domain-resource-blocksubset; the second information comprises a second bit, which correspondsto the second candidate time-domain-resource block; the first time-unitformat is used for indicating X2 multicarrier symbol(s) comprised in thesecond candidate time-domain-resource block, the X2 multicarriersymbol(s) all being the first-type symbol(s), X2 being a non-negativeinteger; when the value of the second bit is a first value and the X2 isnot less than the first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, the second receiver 1602 determines whether a secondcandidate time-domain-resource block belongs to the first resource pool;the second candidate time-domain-resource block is a first-typetime-domain-resource block among the first time-domain-resource-blocksubset; the second information comprises a second bit, which correspondsto the second candidate time-domain-resource block; a time-unit-formatlist comprises a positive integer number of first-type time-unitformat(s), the first time-unit format is a first-type time-unit formatamong the time-unit-format list, and a time-unit-format subset comprisesa positive integer number of first-type time-unit format(s) among thetime-unit-format list; when a value of the second bit is a first valueand the first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.

In one embodiment, the first transmitter 1603 determines a firsttime-frequency-resource block in the first resource pool; the firsttransmitter 1603 transmits a first signal in the firsttime-frequency-resource block; the first resource pool comprises thefirst time-domain-resource block.

In one embodiment, the first node 1600 is a UE.

In one embodiment, the first node 1600 is a relay node.

In one embodiment, the first node 1600 is a base station.

In one embodiment, the first node 1600 is a vehicle-mountedcommunication device.

In one embodiment, the first node 1600 is a UE supporting V2Xcommunications.

In one embodiment, the first node 1600 is a relay node supporting V2Xcommunications.

Embodiment 17

Embodiment 17 illustrates a structural block diagram of a processingdevice used in a second node, as shown in FIG. 17 . In FIG. 17 , asecond node processing device 1700 mainly consists of a secondtransmitter 1701 and a third receiver 1702.

In one embodiment, the second transmitter 1701 comprises at least one ofan antenna 420, a transmitter/receiver 418, a multi-antenna transmittingprocessor 471, a transmitting processor 416, a controller/processor 475or a memory 476 in FIG. 4 of the present disclosure.

In one embodiment, the third receiver 1702 comprises at least one of anantenna 420, a transmitter/receiver 418, a multi-antenna receivingprocessor 472, a receiving processor 470, a controller/processor 475 ora memory 476 in FIG. 4 of the present disclosure.

In Embodiment 17, the second transmitter 1701 transmits firstinformation, the first information being used to indicate a firsttime-unit format; herein, a first time window comprises Q first-typetime-domain-resource blocks, the Q being a positive integer greater than1; any of the Q first-type time-domain-resource blocks comprises apositive integer number of multicarrier symbol(s); a first symbol is oneof the positive integer number of multicarrier symbol(s) comprised inany of the Q first-type time-domain-resource blocks; the first time-unitformat is used for indicating whether the first symbol is a first-typesymbol; the second information is determined by a receiver of the firstinformation, and the second information is used for indicating apositive integer number of first-type time-domain-resource block(s) outof a first time-domain-resource-block subset; the firsttime-domain-resource-block subset comprises a positive integer number offirst-type time-domain-resource block(s) among the Q first-typetime-domain-resource blocks; a first resource pool comprises a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset in time domain, and the firsttime-unit format and the second information are jointly used fordetermining the first resource pool.

In one embodiment, a first candidate time-domain-resource block is oneof the Q first-type time-domain-resource blocks; the first time-unitformat is used for determining whether the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset.

In one embodiment, a time-unit-format list comprises a positive integernumber of first-type time-unit format(s), the first time-unit format isa first-type time-unit format among the time-unit-format list, and atime-unit-format subset comprises a positive integer number offirst-type time-unit format(s) among the time-unit-format list; when thefirst time-unit format belongs to the time-unit-format subset, the firstcandidate time-domain-resource block does not belong to the firsttime-domain-resource-block subset.

In one embodiment, the first time-unit format is used for indicating X1multicarrier symbol(s) comprised in the first candidatetime-domain-resource block, the X1 multicarrier symbol(s) all being thefirst-type symbol(s), the X1 being a non-negative integer; when the X1is less than a first threshold, the first candidate time-domain-resourceblock does not belong to the first time-domain-resource-block sub set.

In one embodiment, the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset; the secondinformation comprises a first bit, which corresponds to the firstcandidate time-domain-resource block and is used for determining whetherthe first candidate time-domain-resource block belongs to the firstresource pool.

In one embodiment, a second candidate time-domain-resource block is afirst-type time-domain-resource block among the firsttime-domain-resource-block subset; the second information comprises asecond bit, which corresponds to the second candidatetime-domain-resource block; the first time-unit format is used forindicating X2 multicarrier symbol(s) comprised in the second candidatetime-domain-resource block, the X2 multicarrier symbol(s) all being thefirst-type symbol(s), X2 being a non-negative integer; when a value ofthe second bit is a first value and the X2 is not less than the firstthreshold, the second candidate time-domain-resource block belongs tothe first resource pool.

In one embodiment, a second candidate time-domain-resource block is afirst-type time-domain-resource block among the firsttime-domain-resource-block subset; the second information comprises asecond bit, which corresponds to the second candidatetime-domain-resource block; a time-unit-format list comprises a positiveinteger number of first-type time-unit format(s), the first time-unitformat is a first-type time-unit format in the time-unit-format list,and a time-unit-format subset comprises a positive integer number offirst-type time-unit format(s) in the time-unit-format list; when avalue of the second bit is a first value and the first time-unit formatdoes not belong to the time-unit-format subset, the second candidatetime-domain-resource block belongs to the first resource pool.

In one embodiment, the third receiver 1702 receives a first signal onthe first time-frequency-resource block; the first resource poolcomprises the first time-domain-resource block.

In one embodiment, the second node 1700 is a UE.

In one embodiment, the second node 1700 is a base station.

In one embodiment, the second node 1700 is a relay node.

In one embodiment, the second node 1700 is a UE supporting V2Xcommunications.

In one embodiment, the second node 1700 is a base station supporting V2Xcommunications.

In one embodiment, the second node 1700 is a relay node supporting V2Xcommunications.

The ordinary skill in the art may understand that all or part steps inthe above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part steps in the above embodiments alsomay be implemented by one or more integrated circuits. Correspondingly,each module unit in the above embodiment may be realized in the form ofhardware, or in the form of software function modules. The first node inthe present disclosure includes but is not limited to mobile phones,tablet computers, notebooks, network cards, low-consumption equipment,enhanced MTC (eMTC) terminals, NB-IOT terminals, vehicle-mountedcommunication equipment, aircrafts, diminutive airplanes, unmannedaerial vehicles, telecontrolled aircrafts and other wirelesscommunication devices. The second node in the present disclosureincludes but is not limited to mobile phones, tablet computers,notebooks, network cards, low-consumption equipment, enhanced MTC (eMTC)terminals, NB-IOT terminals, vehicle-mounted communication equipment,aircrafts, diminutive airplanes, unmanned aerial vehicles,telecontrolled aircrafts and other wireless communication devices. TheUE or terminal in the present disclosure includes but is not limited tomobile phones, tablet computers, notebooks, network cards,low-consumption equipment, enhanced MTC (eMTC) terminals, NB-IOTterminals, vehicle-mounted communication equipment, aircrafts,diminutive airplanes, unmanned aerial vehicles, telecontrolledaircrafts, etc. The base station or network side equipment in thepresent disclosure includes but is not limited to macro-cellular basestations, micro-cellular base stations, home base stations, relay basestation, eNB, gNB, Transmitter Receiver Point (TRP), GNSS, relaysatellites, satellite base stations, space base stations and other radiocommunication equipment.

The above are merely the preferred embodiments of the present disclosureand are not intended to limit the scope of protection of the presentdisclosure. Any modification, equivalent substitute and improvement madewithin the spirit and principle of the present disclosure are intendedto be included within the scope of protection of the present disclosure.

What is claimed is:
 1. A method in a first node for wirelesscommunications, comprising: receiving first information, the firstinformation being used to indicate a first time-unit format; determiningsecond information; and determining whether a first candidatetime-domain-resource block belongs to a first time-domain-resource-blocksubset and determining a first resource pool; wherein a first timewindow comprises Q first-type time-domain-resource blocks, Q being apositive integer greater than 1; any of the Q first-typetime-domain-resource blocks comprises a positive integer number ofmulticarrier symbol(s); a first symbol is one of the positive integernumber of multicarrier symbol(s) comprised in any of the Q first-typetime-domain-resource blocks; the first time-unit format is used forindicating whether the first symbol is a first-type symbol; the secondinformation is used for indicating a positive integer number offirst-type time-domain-resource block(s) out of the firsttime-domain-resource-block subset, and the firsttime-domain-resource-block subset comprises a positive integer number offirst-type time-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool; wherein the first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset atime-unit-format list comprises a positive integer number of first-typetime-unit format(s), the first time-unit format is a first-typetime-unit format among the time-unit-format list, and a time-unit-formatsubset comprises a positive integer number of first-type time-unitformat(s) among the time-unit-format list when the first time-unitformat belongs to the time-unit-format subset, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset; or, the first time-unit format isused for indicating X1 multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block, the X1 multicarrier symbol(s) allbeing the first-type symbol(s), the X1 being a non-negative integer;when the X1 is less than a first threshold, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset.
 2. The method according to claim 1,comprising: determining whether the first candidate time-domain-resourceblock belongs to the first resource pool; wherein the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset; the second information comprises afirst bit, which corresponds to the first candidate time-domain-resourceblock and is used for determining whether the first candidatetime-domain-resource block belongs to the first resource pool.
 3. Themethod according to claim 2, comprising: determining a firsttime-frequency-resource block in the first resource pool; transmitting afirst signal in the first time-frequency-resource block; wherein thefirst resource pool comprises the first time-frequency-resource block.4. The method according to claim 1, comprising: determining whether asecond candidate time-domain-resource block belongs to the firstresource pool; wherein the second candidate time-domain-resource blockis a first-type time-domain-resource block among the firsttime-domain-resource-block subset; the second information comprises asecond bit, which corresponds to the second candidatetime-domain-resource block; the first time-unit format is used forindicating X2 multicarrier symbol(s) comprised in the second candidatetime-domain-resource block, the X2 multicarrier symbol(s) all being thefirst-type symbol (s), X2 being a non-negative integer; when a value ofthe second bit is a first value and the X2 is not less than a firstthreshold, the second candidate time-domain-resource block belongs tothe first resource pool; or, a time-unit-format list comprises apositive integer number of first-type time-unit format(s), the firsttime-unit format is a first-type time-unit format among thetime-unit-format list, and a time-unit-format subset comprises apositive integer number of first-type time-unit format(s) among thetime-unit-format list; when a value of the second bit is a first valueand the first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.
 5. A method in a second node for wirelesscommunications, comprising: transmitting first information, the firstinformation being used to indicate a first time-unit format; wherein afirst time window comprises Q first-type time-domain-resource blocks, Qbeing a positive integer greater than 1; any of the Q first-typetime-domain-resource blocks comprises a positive integer number ofmulticarrier symbol(s); a first symbol is one of the positive integernumber of multicarrier symbol(s) comprised in any of the Q first-typetime-domain-resource blocks; the first time-unit format is used forindicating whether the first symbol is a first-type symbol; secondinformation is determined by a receiver of the first information, andthe second information is used for indicating a positive integer numberof first-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset; the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; a first resource pool comprises a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset in time domain, and the firsttime-unit format and the second information are jointly used fordetermining the first resource pool; a first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset; atime-unit-format list comprises a positive integer number of first-typetime-unit format(s), the first time-unit format is a first-typetime-unit format among the time-unit-format list, and a time-unit-formatsubset comprises a positive integer number of first-type time-unitformat(s) among the time-unit-format list when the first time-unitformat belongs to the time-unit-format subset, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset when the first time-unit format doesnot belong to the time-unit-format subset, the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset; or, the first time-unit format isused for indicating X1 multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block, the X1 multicarrier symbol(s) allbeing the first-type symbol(s), the X1 being a non-negative integer;when the X1 is less than a first threshold, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset when the X1 is greater than a firstthreshold, the first candidate time-domain-resource block belongs to thefirst time-domain-resource-block subset; when the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset, the second information comprises afirst bit, which corresponds to the first candidate time-domain-resourceblock and is used for determining whether the first candidatetime-domain-resource block belongs to the first resource pool.
 6. Themethod according to claim 5, comprising: receiving a first signal on afirst time-frequency-resource block; wherein the first resource poolcomprises the first time-frequency-resource block.
 7. A first node forwireless communications, comprising: a first receiver, receiving firstinformation, the first information being used to indicate a firsttime-unit format; a second receiver, determining second information; andthe second receiver, determining whether a first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset and determining a first resource pool;wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol; thesecond information is used for indicating a positive integer number offirst-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset, the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; the first resource pool comprises apositive integer number of first-type time-domain-resource block(s)among the first time-domain-resource-block subset in time domain, andthe first time-unit format and the second information are jointly usedfor determining the first resource pool; wherein the first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset atime-unit-format list comprises a positive integer number of first-typetime-unit format(s), the first time-unit format is a first-typetime-unit format among the time-unit-format list, and a time-unit-formatsubset comprises a positive integer number of first-type time-unitformat(s) among the time-unit-format list when the first time-unitformat belongs to the time-unit-format subset, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset or, the first time-unit format is usedfor indicating X1 multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block, the X1 multicarrier symbol(s) allbeing the first-type symbol(s), the X1 being a non-negative integer;when the X1 is less than a first threshold, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset.
 8. The first node according to claim7, comprising: the second receiver, determining whether the firstcandidate time-domain-resource block belongs to the first resource pool;wherein the first candidate time-domain-resource block belongs to thefirst time-domain-resource-block subset; the second informationcomprises a first bit, which corresponds to the first candidatetime-domain-resource block and is used for determining whether the firstcandidate time-domain-resource block belongs to the first resource pool.9. The first node according to claim 8, comprising: a first transmitter,determining a first time-frequency-resource block in the first resourcepool; the first transmitter, transmitting a first signal on the firsttime-frequency-resource block; wherein the first resource pool comprisesthe first time-frequency-resource block.
 10. The first node according toclaim 7, comprising: the second receiver, determining whether a secondcandidate time-domain-resource block belongs to the first resource pool;wherein the second candidate time-domain-resource block is a first-typetime-domain-resource block among the first time-domain-resource-blocksubset; the second information comprises a second bit, which correspondsto the second candidate time-domain-resource block; the first time-unitformat is used for indicating X2 multicarrier symbol(s) comprised in thesecond candidate time-domain-resource block, the X2 multicarriersymbol(s) all being the first-type symbol(s), X2 being a non-negativeinteger; when a value of the second bit is a first value and the X2 isnot less than a first threshold, the second candidatetime-domain-resource block belongs to the first resource pool.
 11. Thefirst node according to claim 7, comprising: the second receiver,determining whether a second candidate time-domain-resource blockbelongs to the first resource pool; wherein the second candidatetime-domain-resource block is a first-type time-domain-resource blockamong the first time-domain-resource-block subset; the secondinformation comprises a second bit, which corresponds to the secondcandidate time-domain-resource block; a time-unit-format list comprisesa positive integer number of first-type time-unit format(s), the firsttime-unit format is a first-type time-unit format among thetime-unit-format list, and a time-unit-format subset comprises apositive integer number of first-type time-unit format(s) in thetime-unit-format list; when a value of the second bit is a first valueand the first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.
 12. A second node for wireless communications,comprising: a second transmitter, transmitting first information, thefirst information being used to indicate a first time-unit format;wherein a first time window comprises Q first-type time-domain-resourceblocks, Q being a positive integer greater than 1; any of the Qfirst-type time-domain-resource blocks comprises a positive integernumber of multicarrier symbol(s); a first symbol is one of the positiveinteger number of multicarrier symbol(s) comprised in any of the Qfirst-type time-domain-resource blocks; the first time-unit format isused for indicating whether the first symbol is a first-type symbol;second information is determined by a receiver of the first information,and the second information is used for indicating a positive integernumber of first-type time-domain-resource block(s) out of a firsttime-domain-resource-block subset; the first time-domain-resource-blocksubset comprises a positive integer number of first-typetime-domain-resource block(s) among the Q first-typetime-domain-resource blocks; a first resource pool comprises a positiveinteger number of first-type time-domain-resource block(s) among thefirst time-domain-resource-block subset in time domain, and the firsttime-unit format and the second information are jointly used fordetermining the first resource pool; a first candidatetime-domain-resource block is one of the Q first-typetime-domain-resource blocks; the first time-unit format is used fordetermining whether the first candidate time-domain-resource blockbelongs to the first time-domain-resource-block subset; atime-unit-format list comprises a positive integer number of first-typetime-unit format(s), the first time-unit format is a first-typetime-unit format among the time-unit-format list, and a time-unit-formatsubset comprises a positive integer number of first-type time-unitformat(s) among the time-unit-format list when the first time-unitformat belongs to the time-unit-format subset, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset when the first time-unit format doesnot belong to the time-unit-format subset, the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset; or, the first time-unit format isused for indicating X1 multicarrier symbol(s) comprised in the firstcandidate time-domain-resource block, the X1 multicarrier symbol(s) allbeing the first-type symbol(s), the X1 being a non-negative integer;when the X1 is less than a first threshold, the first candidatetime-domain-resource block does not belong to the firsttime-domain-resource-block subset when the X1 is greater than a firstthreshold, the first candidate time-domain-resource block belongs to thefirst time-domain-resource-block subset; when the first candidatetime-domain-resource block belongs to the firsttime-domain-resource-block subset, the second information comprises afirst bit, which corresponds to the first candidate time-domain-resourceblock and is used for determining whether the first candidatetime-domain-resource block belongs to the first resource pool.
 13. Thesecond node according to claim 12, comprising: a second candidatetime-domain-resource block is a first-type time-domain-resource blockamong the first time-domain-resource-block subset; the secondinformation comprises a second bit, which corresponds to the secondcandidate time-domain-resource block; the first time-unit format is usedfor indicating X2 multicarrier symbol(s) comprised in the secondcandidate time-domain-resource block, the X2 multicarrier symbol(s) allbeing the first-type symbol(s), X2 being a non-negative integer; when avalue of the second bit is a first value and the X2 is not less than afirst threshold, the second candidate time-domain-resource block belongsto the first resource pool; or, a time-unit-format list comprises apositive integer number of first-type time-unit format(s), the firsttime-unit format is a first-type time-unit format among thetime-unit-format list, and a time-unit-format subset comprises apositive integer number of first-type time-unit format(s) among thetime-unit-format list; when a value of the second bit is a first valueand the first time-unit format does not belong to the time-unit-formatsubset, the second candidate time-domain-resource block belongs to thefirst resource pool.
 14. The second node according to claim 12,comprising: receiving a first signal on a first time-frequency-resourceblock; wherein the first resource pool comprises the firsttime-frequency-resource block.